Solve the mathematical puzzle. determine the digits of r from these clues. the first digit is the answer when the third digit is divided by 2. the second and third digits add to 7. the second digit minus the first digit is 1. r is a three-digit number:

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?