Please can you answer this it is probably easy but I am confused

Can some one explain this i got sent this. is this a threat i’m scared

10 points? me . its important ‼️‼️

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?