Answer Happy

19. A fimm's short-run supply curve is the same as A its marginal revenue curve fit produces the good B. the upward-slogang pan of its marginal cost curve C. its marginal cost cune above minimum average variable col Dils marginal cost curve above minimum average total cost 20. In perfect competition, a fimm maximizes its economic profitifit produces the output at which A marker price equals marginal revenue B. economic profil equals zero in short run C. total revenue cquals lolal cost D. marginal cost equals marginal revenue 21. 5. In a perfectly competitive market, Dave sells 4 gallons of milk at $5 per gallon. If he increases his sales to 5 gallons at the same price per gallon, calculate Dave's marginal revenue from selling milk A. $5 B. $2$ C. $20 D$4