1. Economies of scale exist over the range of output to units. Does the firm experience diseconomies of scale? If so, over what range of output? 2. a. Over what range of output does it experience constant long-run costs? Calculate the following costs: b. At 2,250 units of output, long-run average cost is $ ________, long-run marginal cost is $________, and long-run total cost is $________. c. At 2,400 units of output, long-run average cost is $________, long-run marginal cost is $________, and long-run total cost is $________. 3. the minimum efficient scale (MES) is ________units. In order to maximize profit, must the firm operate at MES?