Using this table - How can I find out what quantity the firm produce to maximize profit (steps please)- How can I find out what is the marginal revenue at the optimal quantity? -How can I find out what is the marginal cost at the optimal quantity?-How can I find out what is the maximum profit?-How can I find out what price should firm charge to maximize?

Total Marginal Marginal Quantity Price Revenue Marginal Revenue Total Cost Cost Total Profit Profit 0 160 0 10 -10 1 150 150 150 40 30 110 120 145 290 140 80 40 210 100 3 140 420 130 130 50 290 80 4 135 540 120 190 60 350 60 5 130 650 110 260 70 390 40 6 125 750 100 340 80 410 20 120 840 90 430 90 O 1 121 410 115 920 80 530 100 390 -20