task 1 A cruise ship can sail 25 mph in calm water. Sailing with the Gulf Stream, the ship can sail 124 mi in the same amount of time it takes to sail 76 mi against the Gulf Stream. Find the rate of the Gulf Stream.

task 2 An engineer traveled 175 mi by car and then an additional 740 mi by plane. The rate of the plane was four times the rate of the car. The total trip took 8 h. Find the rate of the car.

task 3 The larger of two printers being used to print the payroll for a major corporation requires 30 min to print the payroll. After both printers have been operating for 10 min, the larger printer malfunctions. The smaller printer requires 50 more minutes to complete the payroll. How long would it take the smaller printer, working alone, to print the payroll?