The following table gives you cost and revenue information for Mac & Kayla's Stacked Sandwiches, which are sold in a perfectly competitive market. Sandwiches Total Cost Variable Cost Average Total Cost Marginal Cost Revenue $20 $30 IN $19 3 $28 564 5 $21 $90 $88 Use the above information. Answer in an integer format, with no commas, dollar signs, or decimals. 1. What is the total cost of six sandwiches? Answer 108 2. What is the price of a sandwich? Answer 3. What is the average cost of four sandwiches? Answer 4. What is the marginal cost of the third sandwich? Answer 10 5. What is profit if Mac and Kayla produce six sandwiches? Answer 6. What is Mac and Kayla's profit-maximizing quantity? Answer 7. What is Mac and Kayla's profit? Answer 18