In the market for lock washers, a perfectly competitive market, the current equilibrium price is $5.00 per box.

In the market for lock washers, a perfectly competitive market, the current equilibrium price is $5.00 per box. Washer King, one of the many producers of washers, has a daily short-run total cost given by TC = 190 + 0.20Q + 0.0025Q2, where Q measures boxes of washers. Washer King's corresponding marginal cost is MC = 0.20 + 0.005Q. How many boxes of washers should Washer King produce per day to maximize profit?