The formula in solving volume for a rectangular prism is V=WHL where w=width, h=height, l=length and v=volume. Values are given in the problem such as below: V=150 in³ W=712 in H=2 in Then, we can solve for L such as: 150=712*2*L L=0.105 inches The answer for the length of the pan is 0.105 inches.