(38⋅ 2−5⋅ 90)−2⋅2 to the power of negative 2 over 3 to the power of 3, whole to the power of 4⋅ 328

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?