Arestaurant has one type of lemonade that is 12% sugar and another that is 7% sugar. how many gallons of each type does that restaurant need to make 20 gallons of a lemonade mixture that is 10% sugar? a.12 gallons of the 12% lemonade and 8 gallons of the 7% lemonade. b. 10 gallons of the 12% lemonade and 10 gallons of the 7% lemonade. c. 8 gallons of the 12% lemonade and 12 gallons of the 7% lemonade. d. 2 gallons of the 12% lemonade and 18 gallons of the 7% lemonade.