When clara accesses the programs and documents on her computer by way of icons, she is said to be employing

a. graphical user interface.
b. network.
c. internet explorer.
d. cpu.

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?