Suppose Al, Betty, and Carl own the only fishing companies in your village. Suppose the market price today is $10 per fish. Suppose Al catches 4,000 fish with an average total cost of $7.50, Betty catches 6,000 fish with an average total cost of $6, and Carl catches 10,000 fish with an average total cost of $5 . If everyone is a profit maximizer, what is Betty's marginal cost?

a. $6
b. $7
c. $8
d. $9
e. $10


E

Economics

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