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P TR MR TC MC 80 50 70 70 ? 60 ? 60 120 50 76 12 3 50 150 30 86 14 4 40 160 ? 102 30 150 10 120 18 20 120 -30 145 20 10 70 -50 170 25 if this is an unregulated monopoly, at profit maximization; The average total cost (ATC) would be Select one: O a. 528.67 O b. 524 C. 590 O d. 530 Assume there are 100 companies that produce cell phones. All cell phones are black and have identical features. The graph below provides the demand curve and production costs for the cell phone industry. Price MC 650 433 AVC 328 258 0 Quantity (1000s) the indifference between cell phones is an example of Select one: a. large number of firms O b. perfect knowledge of the product O c. no barriers to entry O d. product homogeneity