2. Consider a rm that hires L hours of labour services at a wage of to per hour and rents 10 pts K hours of machine services at a rental rate of 1' per hour in order to produce 9 units of output in accordance with the production mction q = min{1l]L,5K). (a) Determine the rm's long-run total, average, and marginal cost mctions. 3 p15 (b) Suppose that K is fixed at 20 in the short run. Determine the firm's short-run total, 3.5 pts average, and marginal cost functions. (c) Suppose that w = 3 and r = 1. On appropriate, well-labelled graphs, draw the 3.5 pts short-run total cost curve for K = 20 and the short-run average and marginal cost curves for K = 20