Use the cost and revenue data to answer the questions. Quantity Price Total Revenue Total Cost 15 90 1350 900 30 80 2400 1500 45 70 3150 2250 60 60 3600 3150 75 50 3750 4200 90 40 3600 5400 What is marginal revenue when quantity is 30 ? 30? $ What is marginal cost when quantity is 60 ? 60? $ If this firm is a monopoly, at what quantity will profit be maximized? quantity: If this is a perfectly competitive market, which quantity will be produced? quantity: Comparing monopoly to perfect competition, which statement is true? The perfectly competitive market's ouput is lower. The consumer surplus is smaller with a monopoly. The monopoly's price is higher.

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explanation:

f

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it

answer; dogs;