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Suri is willing to pay $85 for a pair of shoes for her graduation banquet. She finds a pair at her favourite outlet shoe store for $62. What is Suri's consumer surplus? O a. $85 O b. $46 O c. $23 O d. $62IfJadelyn sells a bracelet for $30, and her producer surplus from the sale is $21, what must her cost have been? O a. $51 0 b. $21 O c. 39 C) d. $30 A monopolist faces market demand given by P = 300 - 2Q. For this market, MR = 300 - 4Q and MC = 40. What price will the monopolist charge in order to maximize profits? O a. $170 O b. $140 O c. $120 O d. $60A competitive firm sells its output for $45 per unit. It employs 30 workers, and the marginal product of the 30th worker is four units of output per day. It pays its workers a wage of $150 per day. Which statement will help the firm make the right decision regarding hiring a 31st worker? O a. The firm's profit would increase if it hired a 31st worker. O b. For the 30th worker, the marginal revenue product is $600. O c. Workers are consistently becoming more productive. O d. For the 30th worker, the value of the marginal product of labour is $600Ryah sells investment advice for $150 per hour. Her cost is $40 per hour. What is Ryah's producer surplus? a. $40 per hour O b. $80 per hour O c. $130 per hour O d. $110 per hour