1. 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 sells them for 4 - x dollars per kilogram. What should Ms. Ortiz charge per kilogram and tomatoes to make the maximum profit, and what is the maximum profit she can make on a load of tomatoes.

A - $230 at $3 per kilogram

B - $310 at $2 per kilogram

C - $320 at $2 per kilogram

D - $320 at $3 per kilogram

2. A football is kicked into the air from an initial height of 3 feet. The height, in feet, of the football above the ground is given by s(t) = - 16t^2 + 35t + 3, where t is the time in seconds and t ≥ 0. Which is the closest to the time when the football will be 20 feet above the ground.

A - 2.72 seconds

B - 0.73 seconds or 1.46 seconds

C - 0.53 seconds

D - 0.53 seconds or 2.72 seconds

3 through 6 are in a picture below.