John’s Lawn Mowing Service is a small business that acts as a price-taker (i.e., MR 5 P). The prevailing market price of lawn mowing is $20 per acre. John’s costs are given by total cost 5 0.1q2 1 10q 1 50, where q 5 the number of acres John chooses to cut a day.

a. How many acres should John choose to cut to maximize profit?

b. Calculate John’s maximum daily profit.

c. Graph these results, and label John’s supply curve.