40; In a perfectly competitive market, market demand is Qd = 300 - 4P and market supply is 05 = 6P. Each identical rm has constant average total costs ATC = 35- In long run equilibrium, how many units of output will be traded in the market? a. 140 c. 180 b. I60 {1. 210 33. In a perfectly,r competitive market, market demand is Qd = 300 - 4P and market supply is Qs = 6P. Each identical firm has constant average total costs ATC = 35- Firrns are experiencing 3. economic losses and there will he exit in c. zero economic prot and the market is in the long run. long run equilibrium. h. economic prots and there will be entry' in d. normal returns and there will be some the long run. entry in the long run