problem solving

Question

The store is selling lemons at $0.39 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make two 9-inch lemon pies, each requiring half a cup of lemon juice?

$

Answer 1

1 cup is needed, which is 16 tablespoons

therefore, 8 lemons are needed

8 * 0.39 = 8 * (0.4 - 0.01) = 3.20 - 0.08

= 3.12