Hey guys! i am having trouble with this question and would love it if someone would explain to me step-by-step how to get the answer.

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.]

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20