The weekly demand function forxunits of a product sold by only one firm isp=6001/2xdollars, and the average cost of production and sale isC=200+ 2xdollars.

a.) Find the quantity that will maximize profit.

b.) Find the selling price at this optimal quantity.

c.) What is the maximum profit?

*I was able to figure out a and b, but I am having a hard time solving for c.