Count to three. NEED HELP!

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. !

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

How do you determine if an ordered pair is a solution to a given equation?