Please, check my wrong sentences
Many problems exist in our life. Above all, Our team conclude to solve school problems. There is a sports center user in our team. After we heard the phenomenon of sports center from him, we became interested in sports center problem and research how to solve it. We gathered data through visiting sports center and door-to-door interview from office worker. We put datas to spreadsheet and reason out a conclusion as algebraic formulation.
In conclusion, sports center need ten treadmill, two arm curl, four chest press and one leg extension. And the total cost would be 55.1 million won. As our investigation, sports center operating revenue would be over 9 billion won each semester. So the cost 55.1 million won seems enough.
We realize that abstract problems can be solved formulaically through linear programming. We hope students can use sports center more than before and improve their health.

Question

Please, check my wrong sentences
Many problems exist in our life. Above all, Our team conclude to solve school problems. There is a sports center user in our team. After we heard the phenomenon of sports center from him, we became interested in sports center problem and research how to solve it. We gathered data through visiting sports center and door-to-door interview from office worker. We put datas to spreadsheet and reason out a conclusion as algebraic formulation.
In conclusion, sports center need ten treadmill, two arm curl, four chest press and one leg extension. And the total cost would be 55.1 million won. As our investigation, sports center operating revenue would be over 9 billion won each semester. So the cost 55.1 million won seems enough. 
We realize that abstract problems can be solved formulaically through linear programming. We hope students can use sports center more than before and improve their health.

Answer

Many problems exist in our lives. Above all, our team aims to solve school problems. A member of our team uses the Sports Center, and after hearing about the Sports Center from him, we became interested in the problems with it and researched how to solve these problems. We gathered data by visiting the Sports Center and conducting an interview with one of their office workers. We applied our data to a spreadsheet and used an algebraic formula to calculate the needs of the Sport Center.
In conclusion, the Sports Center needs ten treadmills, two bicep curl machines, four chest press machines, and one leg extension machine. We also calculated that the total cost would be 55.1 million won. Our thorough investigation of the Sports Center found that the operating revenue would be over 9 billion won each semester, so, overall, the cost of 55.1 million won seems insignificant.
We realized that abstract problems can be solved by using algebraic formulas and linear programming. We hope current and future students can use the Sports Center more than before to improve their health.

(I hope this helped.)