Use the following general linear supply function:Qs = 40 + 6P - 8PI + 10F  where  Qs is the quantity supplied of the good, P is the price of the good, PI is the price of an input, and F is the number of firms producing the good. Suppose PI = $40 and F = 50, what is the lowest price that will induce firms to supply 400 units of output?

A. $25
B. $20
C. $30
D. $15
E. $35


Answer: C

Economics

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