Help me figure out what to divide by 18

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.]

How can constraints be used to model a real-world situation?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect