I will mark the brainiest! Please, and thanks! :) (For the second one, just put it down on a piece of paper and upload a pic)

For the equations below which statement is true ?

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

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)