Center (-3,1) and tangent to the y-axis

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. !

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

How to use order of operation in 20 divide by 4 multiply 5 = 1