Aclose system is internal energy changes by 178 j as a result being heated with 658 j of energy the energy used to work by the system is blank

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Write a corresponding real world problem to represent 2x - 125=400

A(t)=728(1+0.04)^t how much money did aditya originally invest