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QUESTION
A monopolist can sell 20 operating systems at $110 each. In order to sell 21 operating systems, he must reduce the price to $100.
A monopolist can sell 20 operating systems at $110 each. In order to sell 21 operating systems, he must reduce the price to $100. If the monopolist reduces the price to $100, then marginal revenues is
A) -$10
B) -$100
C) $110
D) constant
