Iced tea, x, costs $4 per gallon and lemonade, y, costs $6 per gallon. you need to purchase at least 9 gallons of drinks for a neighborhood picnic, but have at most $55 to spend. model the scenario with a system of inequalities. which of the following options represents a possible solution to the system of inequalities? a. (10,10) b. (10, -5) c. (2,10) d. (10,1)