Suppose that the total benefit and total cost from a continuous activity are, respectively, given by the following equations:
B(Q) = 100 + 36Q - 4Q2 and C(Q) =80 + 12Q.
(Note: MB(Q) = 36 - 8Q and MC(Q) = 12.)
N(Q) = 20 + 24Q + ____
The correct answer is 20 + 24Q - Q^2