Given the speeds of each runner below, determine who runs the fastest. Jessica runs 8 feet per second.
Liz runs 399 feet in 31 seconds.
Debbie runs 1 mile in 545 seconds.
Stephanie runs 791 feet in 1 minute.

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?