a class is having their picture taken. the photographer positions himself 21 feet from the center of the row of students. When the the photographer looks at the last student at either end of the row, the photographer must turn 45 degrees from the center in either direction

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?