Nurse Jackson examines immunization records for this past winter at the school where she works. How many students were not vaccinated and did not get get the flu A. 275 B. 350 C. 550 D. 75

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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?