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A firm operates in perfectly competitive markets with the following demand and cost functions: QD=610-2P   ...

A firm operates in perfectly competitive markets with the following demand and cost functions:

QD=610-2P   

TC=0.25Q^2+200Q+25.

The Marginal Cost function is: MC=0.5Q+200 and the ATC is minimized at Q=10

How many firms are in the market in the long-run?


Select one:
a. N=10
b. N=15
c. N=20
d. N=25
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