Use the following to answer the next 4 questions Suppose gold mining in the US was a perfectly competitive industry with N = 40 firms. Over the years Mr. Barrick purchased the all individual gold mines. The industry is now a monopoly owned by Mr. Barrick $ 70 60 40 30 MC = AC 10 20 30 40 50 60 Q MR 32) The profit Mr. Barrick earns as a monopolist is a. $700 b. $600 c. $900 d. $1000 e. none of the above 33) Before Mr. Barrick monopolized the industry, the total industry output of N = 40 competitive firms was Q = a. 20 b. 30 c. 40 d. 60 e. none of the above 34) After monopolization price per unit increased by a. 20 b. 30 c. 40 d. 60 e. none of the above 35) What is the extent of inefficiency (DWL = loss of total surplus) as a result of monopolization of what used to be a competitive industry? a. 450 b. 400 c. 500 d. 350 e. none of the above