Answer:
It should give 15 haircut
And maximum profit will be 112.5
Explanation:
It is given total cost [tex]TC=0.5Q^2[/tex]
Corresponding marginal cost MC = Q
For maximizing profit P = MC
Assuming market price of haircut Q = 15
So it should give 15 haircut
So P = MC = Q = 15
Profit is equal to
Profit = PQ - TC
[tex]=15\times 15-0.5\times 15^2[/tex]
=112.5