Uma uses 5 gallons of red paint for every 2 pints of green paint. What is the rate of gallons of red paint to 1 gallon of green paint?20 gallons of red paint/1 gallon of green paint10 gallons of red paint/1 gallon of green paint8 gallons of red paint/1 gallon of green paint5 gallons of red paint/1 gallon of green paint