Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-If the height of a rectangular solid is held constant, the volume varies jointly with the length and the width. If the volume is 160 cubic inches when the length is 8 inches and the width is 5 inches, find the volume when the length is 7 inches and the width is 6 inches.

A) 140 in. ${ }^{3}$
B) 168 in. ${ }^{3}$
C) 126 in.. $^{3}$
D) 192 in. ${ }^{3}$