Costs, Quantities and Price for Firm in Perfect Competition Price Quantity Sold Marginal Revenue Marginal Cost Average Total Cost $25 4 -- -- $29 $25 5 (A) $16 $26.40 $25 6 (B) $12 $24 $25 7 (C) $15 $22.7 $25 8 (D) $27 $23.25 Use the table above to answer the following question. Assume the firm produces at its profit-maximizing quantity. What is the firm's total revenue