A manufacturer of hot tubs makes two kinds of hot tubs - Bill and Jane. Bill requires 10 hours of labor and Jane requires 12 hours. Bill needs 50 feet of tubing and Jane needs 40 feet. The manufacturer expects to have 2,000 labor hours and 10,000 feet of tubing available. A single hot tub of type Bill requires 4 pumps: however, type Jane requires 3 pumps. He has 720 pumps at his disposal. Let X= the number of Bill bathtubs and Y= the number of Jane bathtubs manufactured. Which constraint(s) below represent(s) the restriction on labor? 10X+12Y