Marginal cost & benefit
1-The only choice variable is x. The total benefit function is B(x) = 100x - 2x2, and the total cost function is C(x) = 1/3 x3 - 6x2 + 52x + 80. a-What are the marginal benefit and marginal cost functions? b-Set up the net benefit function and then determine the level of x that maximizes net benefit. (Use the positive value