p=D(x) =71.9-0.02x

c(x)=0.07x^2 + 6.5x+6000

140

A sales representative for a company that produces coffee makers can sell x units of their deluxe model if the price is p = D(x) = 71.9 -0.02% dollars. The total cost for these coffee makers is given by C(x) = 0.07x? +6.5x + 6000 dollars. Determine the marginal profit for 140 coffee makers