Greenyard’s manufactures and sells yard furniture made out of recycled materials. The company is considering making a lawn chair from recycled aluminum and fabric. The expense and revenue functions are
E=-1,850p+800,000 and R=-100p2+20,000p

A. Determine the profit function:

B. Determine the price, to the nearest cent, that yields the maximum profit:

C. Determine the maximum profit, to the nearest cent.