Help please! i really need help, i cant figure it out on edginuity

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?

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

You use technology ans find a sum of 6.712e-8. write this sum in standard form