I need some help with these questions

Chose the graph below that represents the following system of inequality’s

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.