Table 15-3 Tommy's Tie Company, a Monopolist, Has the Following Cost and Cost

Table 15-3
Tommy's Tie Company, a monopolist, has the following cost and revenue information. Assume that Tommy's is able to engage in perfect price discrimination.
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-Refer to Table 15-3. If the monopolist can engage in perfect price discrimination, what is the average revenue when 7 ties are sold?

A) $90
B) $100
C) $110
D) $130