I need this done for a test, and if someone can answer one of my past questions, thank you

Do not comment if you aren’t going to . 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. !

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form