Demand and supply are fundamental concepts in microeconomics that influence market decisions. This article aims to explore the application of mathematical models in explaining the interaction between demand and supply in the market for goods and services. Through an economic mathematics approach, we analyze the demand and supply functions, as well as the application of market equilibrium using calculus techniques and function analysis. The proposed mathematical model focuses on how price and quantity are determined in competitive markets, along with the impact of external factors such as consumer income, related goods prices, and production costs. This study also examines applications in economic policy-making to balance the market.

This study aims to evaluate the income, revenue, and viability of the tette chip industry from the financial and manufacturing processes in Blumbungan Village, Larangan District, Pamekasan Regency. This kind of study is known as descriptive research. This study's analytical methods include total production costs, revenues, income, and calculations of company feasibility utilizing ROI, R/C, and B/C ratios. Six informants from the Tette chips company in Blumbungan Village, Larangan District, Pamekasan Regency participated in this study. They were selected using a purposive sample method. Based on the research findings, the six informants who owned Tette chips businesses had an average total cost of IDR 1,016,797, an average income of IDR 2,185,000, and an average income of IDR 1,168,203. Using the B/C ratio to calculate business feasibility yielded an average result of 1.16 when B/C > 0, an average result of 16% when ROI > 0%, and an average result of 2.16 when R/C > 1. Based on the findings of these computations, it is possible to operate and grow the tette chip industry in Blumbungan Village, Larangan District, Pamekasan Regency.

The strategy in entrepreneurship aims to empower society. If an entrepreneur can carry out an entrepreneurial strategy seriously, there is a big possibility that success can be achieved and can bringabout change for himself. This research uses a literature study approach, by utilizing library sources toobtain research data. This research aims to increase understanding in creating social entrepreneurshipstrategies to empower the community. Entrepreneurial strategies that can be used to empower communitiescan start from economic empowerment, in order to provide individuals, groups or communities with access,knowledge, skills and resources they need to improve and manage their economic situation effectively.Community social empowerment , to emphasize that people have the capacity and potential to take controlof their own lives and play an active role in making decisions that will affect their lives. and communitycultural empowerment. This is an approach that seeks to strengthen, preserve and enhance the culturalheritage, traditions, language, arts and cultural values of a group or community. Apart from appropriatestrategies for empowering society, entrepreneurship principles are also needed..

This study aims to determine the Effect of Work Motivation on EmployeePerformance. The sampel of this study, namely employee of Little Work Preschool Sunter North Jakarta, numbered 25 people. Data collection was carried out using a questionnaire method to examine Work Motivation and Employee Performance. The validity test uses factor analysis, and the reliability test uses the Cronbach's alpha formula. The analysis prerequisite test used is the normality test. Analysis of the data used is simple regression analysis for hypotheses test. Hypothesis testing results obtained conclusions: There is a significant influence of work motivation on the performance of employee at little work Preschool in Sunter, North Jakarta. This is evidenced by the value of Sig. 0.000 <0.05 and th = 7,50.

This study aims to determine the influence of Covid-19 on the poverty rate in East Java Province from 2019-2022, which was carried out using a qualitative approach using descriptive data taken from BPS (Central Statistics Agency) East Java data per Regency/City from 2019-2022. The results of the research obtained that the influence of covid on the poverty level from the beginning before the covid occurred, namely in 2019, by looking at which areas have a high poverty rate and which areas have a low poverty rate.In 2020, during the Covid pandemic, we looked for data on which areas had increased poverty rates, and which areas had not increased poverty rates, in 2021 poverty after the pandemic was looking for data on which areas could reduce poverty rates, and which areas had not been able to reduce poverty rates, and in 2022 we were looking for data on which areas could reduce poverty rates,  and which areas have not been able to reduce the poverty rate,  and which areas have not been able to reduce the poverty rate, and what are the policies carried out by the government to reduce poverty due to the Covid-19 pandemic.

This research is an analysis of the influence of personal selling ethics on life insurance customer satisfaction. The object of this research is PT. Sunlife Financial Medan Branch. The problem of this research is whether Order Takers, Order Getters, Order Creators, and whether Order Takers, Order Getters, Order Creators have an effect on PT life insurance customer satisfaction. SunLife Financial Medan Branch. The purpose of this research is to find out whether Order Takers, Order Getters, Order Creators, and whether Order Takers, Order Getters, Order Creators have an effect on PT life insurance customer satisfaction. SunLife Financial Medan Branch. The research method used is a comparative quantitative method. The comparative quantitative method has been chosen to obtain the data needed in this study. This research used 93 respondents and all respondents were customers of PT. Sunlife Financial Medan Branch. Data analysis used the SPSS 16.0 computer program. The results of this research. The test results show that it is known that the coefficient of determination is 50.8%, which means that customer satisfaction can be explained by the variables order takers, order gettors and order creators. And this means that 49.2% is influenced by other variables that are not within the scope of this research. Thus, the hypothesis which states that order takers, order getters and order creators have a significant effect on customer satisfaction can be accepted.

Street vendors are informal sector tradlers with rlelativlely littlle capital who arle involvled in thle production and salle of goods (slervicles). This businless is carriled out in placles that arle considlerled stratlegic in an informal lenvironmlent in thle Rungkut Mlenanggal sub-district, Surabaya City. Thle population and samplle in this rleslearch wlerle strlelet vlendors in thle Rungkut Mlenanggal sub-district, Surabaya City, totaling 32 rlespondlents. Thle rlesults of thle analysis show that thle working capital and working hours variablles simultanleously havle a significant lefflect on thle incomle variablle for strlelet vlendors. Partially, thle working capital variablle doles not havle a significant influlencle on thle Strlelet Vlendor incomle variablle, whille partially working hours have a significant influence on the Street Vendor income variable. 

This research is entitled "The Influence of BPJS User Health Services on Consumer Satisfaction at the Inanta General Hospital, Padang Sidimpuan City". The aim of this research is to determine the influence of BPJS User Health Services on Consumer Satisfaction at the Inanta General Hospital, Padang Sidimpuan City. The data collection technique uses a questionnaire. which was distributed to respondents using a probability sampling method with a simple random sampling technique using the Slovin formula with a sample size of 100 respondents who were BPJS patients at RSU Inanta, Padang Sidimpuan City. Data analysis techniques include t test, f test, multiple regression and determinant test. The results of the research show that the coefficient of determination (R Square) of the independent variable on the dependent variable is 0.388, which can be interpreted as 3.88% of the independent variable being able to explain the dependent variable. From the results of the partial significant test of the Direct Evidence variable, it is obtained that thitung is 1.412 < 1.99 from ttabel so it can be concluded that the Direct Evidence variable does not have a positive influence on consumer satisfaction. Responsiveness has a positive and significant effect on consumer satisfaction 2.632 with thitung 2.632 > ttabel 1.99 there is a positive influence on consumer satisfaction, guarantee of consumer satisfaction thitung 4.802> ttabel 1.99 has an effect on Consumer Satisfaction. Simultaneous results withFhitung >  Ftabel (20.251> 2.70), meaning that simultaneously direct evidence, responsiveness and guarantee have a positive influence on consumer satisfaction at RSU Inanta Padang Sidimpuan City.

This study aims to analyze entrepreneurial knowledge on entrepreneurial interest among students. By using the literature study research method. This study refers to 30 journal articles that discuss the topic of the influence of entrepreneurial knowledge on student entrepreneurial interest. The analysis shows that knowledge has a positive and significant influence on entrepreneurial interest in students with a percentage of 93.33%. Entrepreneurial knowledge, including business understanding, management, and innovation, is an important foundation in building students' courage and ability to be entrepreneurs. This research confirms the importance of increasing entrepreneurship learning in higher education to encourage young people to create innovative and independent job opportunities.

Telecommunication service providers consist of many entities. This results in a lot of business competition within it. It is very important to maintain the competitiveness of telecommunications companies to be able to continue to survive in this business environment. Therefore, companies need to conduct research that can identify hidden weaknesses of the company. This study aims to measure the performance of telecommunications contractor companies (Telco) by applying the benchmarking method, focusing on PT. LUM as a case study. Company performance will be evaluated in several key aspects, including operational efficiency, service quality, and customer satisfaction. Qualitative and quantitative approaches are used to collect and analyze data, including document analysis, interviews with senior management and customers, and literature studies on company performance and benchmarking. The results of the study are expected to provide a better understanding of PT. LUM's performance and allow for performance comparisons with other Telco contractor companies. Recommendations generated from this study are expected to help PT. LUM improve company performance and compete more effectively in the market