the graph is already done Supply (20 firms) Demand Supply (40 firms) PRICE (Dollars per pound) Supply (60 firms) 120 240 300 409 809 720 840 640 1650 1209 QUANTITY (Thousands of pounds) If there were 40 firms in this market, the short-run equilibrium price of copper would be s per pound. At that price, firms in this industry would . Therefore, in the long run, firms would the copper market. Because you know that competitive firms earn economic profit in the long run, you know the long-run equilibrium price must be per pound. From the graph, you can see that this means there will be * firms operating in the copper Industry in long-run equilibrium. True or False: Assuming implicit costs are positive, each of the firms operating in this Industry in the long run earns negative accounting profit True False