Two friends shop for fresh fruit. Elena buys a watermelon for $7.25 and 3 pounds of cherries. Taniy buys a pineapple for $4.15 and 2 pounds of cherries. Use the variable p to represent the price, in dollars, per pound of cherries. Write and simplify an expression to represent how much more Elena spent. The expression enter your response here represents how much more Elena spent than Taniy. (Simplify your answer. Use integers or decimals for any numbers in the expression.)