uantity Price Total Revenue Marginal Revenue Total Cost Marginal Cost Total Profit Marginal Profit 0 180 0 --- 15 --- -15 --- 1 160 160 160 55 40 105 120 2 150 300 140 115 60 185 80 3 140 420 120 195 80 225 40 4 130 520 100 295 100 225 0 5 120 600 80 415 120 185 -40 6 110 660 60 555 140 105 -80 7 100 700 40 715 160 -15 -120 8 90 720 20 895 180 -175 -160 What quantity should the firm produce to maximize profit? What is the marginal revenue at the optimal quantity? What is the marginal cost at the optimal quantity? What is the maximum profit? What price should the firm charge to maximize profit