Answer
a. It will take .916 minutes for the dough to reach a volume of 2.5 quarts.
b. $v'(h)=e^h$
Work Step by Step
a. To find the number of minuets at which the volume reaches 2.5 is found by evaluating $0=e^h-2.5$.
b. The formula is found by taking the derivative of the original function.