Refer to Table 16-3. Suppose Julie's marginal cost of providing this service is constant at $7 and she charges $7 per hour. What is her marginal revenue?

A) It is $7 for the first hour and starts increasing thereafter.
B) It is constant at $7.
C) It coincides with the figures in the table; $12 for the first hour, $10 for the second, $9 for the third, and $8 for the fourth.
D) It is $7 for the first hour and starts declining thereafter.


B

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