How to do this I'm stuffing very badly

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

Which of the following graphs represents the function f(x) = 2^x

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars