Help me im stoopid lol

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.]

What is the value of x in the following equation. -x ^3/2 = -27

What is the value of x in the following equation? -3x-2=2x+8