the table shows the cost and revenue information for a perfectly (or purely) competitive firm that produces external hard drives. use whole numbers to answer the six questions. quantity (units) fixed cost ($) variable cost ($) total revenue ($) 10 100 36 1,000 11 100 74 1,100 12 100 145 1,200 13 100 202 1,300 14 100 300 1,400 15 100 435 1,500 16 100 588 1,600 17 100 774 1,700 what is the marginal revenue received from the 11th unit?