Question 18 (1 point) ~/ Saved If the demand for air travel were to change so that business travelers and vacationers have the same price elasticity of demand for air travel, 6) A) airlines would counter by charging vacationers a higher fare. O B) airlines would still charge business yers a higher fare since the traveler's employer pays anyway. 0 C) airlines would charge the same price to each type of yer. O D) airlines would be driven out of business. Question 7 (1 point) Saved A dominant-firm's residual demand curve is A) the horizontal difference between the market demand curve and the supply curve of the fringe firms. O B) the vertical difference between the market demand curve and the supply curve of the fringe firms. O c) the demand curve left for the fringe firms after the dominant firm has determined an output level. (D) None of these.Question 9 (1 point) When a monopoly is maximizing its profits, ( A) MR > MC. O B) MR dMC/dQ. (D) dMR/dQ