How do I delete my account? I’m no longer in school so I don’t need the app

Can some one me with this math problem?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students