What is the firm's total profit function for TC=20+4(Q1 +Q2)?

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A U.S. export-import shipping company operates a general cargo carrier service between New York and several western European ports. It hauls two major categories of freight: manufactured items (Q1) and semimanufactured raw materials (Q2). The demand functions for these two classes of goods are: P1:2007Q1 P22807622 where Qi = tons of freight moved. The total cost function for the United States is TC:20+4(Q1+Q2) The profit-maximizing levels of price and output for manufactured items are per ton and E tons, respectively. The profit-maximizing levels of price and output for semimanufactured raw materials are per ton and E tons, respectively. At these levels of output the marginal revenue in the manufactured items market is and the margina! revenue in the semimanufactured raw materials market is . At these prices, the price elasticity of demand in the manufactured items market is V and the the price elasticity of demand in the semimanufactured raw materials market is V . (Hint: ED : MillP) What are the total profits if the company is effectively able to charge different prices in the two markets? . If the company is required by law to charge the same perton rate to all users, the new prot-maximizing level of price and output are per ton and \\: tons respectively. The total profits in this situation is