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Shopping Two friends shop for fresh fruit. Elena buys a watermelon for $7.85 and 4 pounds of cherries. Tainiy buys a pineapple for $3.65 and 3 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.

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Elena

1 Watermelon = $7.85

4 lb = cherries

Tainly

1 pineapple = $3.65

3 lb cherries

P = price of cherries

total price = 1 watermelon + 4 lb cherries + 1 pineapple + 3 lb cherries

Substitution

Total price = 7.85 + 4p + 3.65 + 3p

Simplification

Total price = 11.5 + 7p

Equation for Elena = 7.85 + 4p

Tainly equation = 3.65 + 3p

How much Elena spent = 7.85 + 4p - 3.65 - 3p

= 4.2 + p

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