As in Worked-Out Problem 17.2 (page 599), Kalamazoo Competition-Free Concrete (KCC) is a local monopolist of ready-mix concrete. Its annual demand function is Qd = 16,000 - 200P, where P is the price, in dollars, of a cubic yard of concrete and Q is the number of cubic yards sold per year. Suppose that Kalamazoo's marginal cost is $20.00 per cubic yard and its avoidable fixed cost is $100,000 per year. What is its profit-maximizing sales quantity and price? How would your answer change if Kalamazoo had an avoidable fixed cost of $200,000 a year? What if that fixed cost were instead sunk?