To find the original price of each apple before any discounts were applied, we need to first calculate the price per apple after the discount, and then consider the discount.
Eve bought 12 apples for $15, so to find the price per apple after the discount, you would divide 15 by 12:
divide 15 by 12
After finding the price per apple after the discount, you could then add the discount back (0.25) to find the original price before the discount was applied.
Thus, the operation done first is divide 15 by 12.