Plz me on this say it in a complete sentence plz plz

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 is true for the relation f(x)=2x^2+1

Find the area of an equilateral triangle with a side of 6 inches