Question 42 5 pts The docking station industry is perfectly competitive. Each firm producing the stations has long-run cost curve given by C = 400 + 20q + q2. (You may assume this is both the short-run and the long-run cost curve.) The market demand is given by Q = 4000 - 25p. The long-run equilibrium number of firms is O 60 O 20 125 O 75