I’m stuck on the last question on my assignment. Pre calc work

How to determine whether two known pairs of points are on the same line.

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 measure of angle tvu shown in the diagram below