At a farmers market, samuel bought 3 pounds of apples for x dollars per pound and 2 bags of spinach for y dollars each. the next day he returned and bought 5 pounds of apples for x dollars per pound and 3 bags of spinach for y dollars each. which expression represents the total amount he spent at the market on both days? 8x g 5y 8y 5x 6y + 7x 6x + 7y