Part A) A monopolistic firm has a sales schedule such that it can sell 15 goods per week at $20 each, but if it restricts its output to 14 per week it can sell these at $22 each. The marginal revenue of the 15 unit of sales per week is:

Part B) Based on the data in the above question, is it possible for the monopolist to produce the 15th unit?

a- NO

b- Can't determine

c- Yes