mark is eating holiday rolls very quickly at 7 rolls per minute. He says he will eat 77 rolls in 12 minutes. is mark correct? if not what should the correct answer be?

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?

Based on the diagrams, what is the value of x?

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.