The fоllоwing grаph shоws the аverаge total cost, marginal revenue, and marginal cost curves of a perfectly competitive wheat farmer. (Each correct selection is worth 3 points) How much is wheat per bushel in this market? [1] What is the marginal revenue for the 7th unit [2] This firm is incurring a (choose one: profit/loss) [3]. In the long run, firms will (choose one: enter/exit) [4] this market. What is this firm's profit or loss, rounded to the nearest penny? [5] If the market price fell to $9.51, the firm would (choose one: shut down, earn normal profit, earn an economic profit, incur an economic loss). [6]