The long-run cost function of one of the identical carrot-producing firms is
C(q) = 45q - q ^ 2 + 0.01q ^ 3
The market demand curve is
Q = 10000 - 190p
Now, the government starts collecting a specific tax, t = 10 on the carrot market
a) The market quantity demanded is 6750, the number of firms is 130
b) The market quantity demanded is 4300, the number of firms is 86
c) The market quantity demanded is 7745, the number of firms is 98
d) The market quantity demanded is 4450, the number of firms is 118
e) None of the answers hold