To find the original price of each apple before the discount, we need to consider the operations involved after Eve bought the apples and received the discount. She bought 12 apples for $15.
First, we can calculate the price per apple after the discount by dividing the total cost by the number of apples: \[ \text{Price per apple after discount} = \frac{15}{12} \]
To find the original price per apple before the discount, we need to add the discount back to the price per apple. Since the discount is $0.25 for each apple, we need to perform the operation of: \[ \text{Original price per apple} = \left(\frac{15}{12}\right) + 0.25 \]
Since the first operation we perform in this process is dividing $15 by $12, the correct response is:
divide 15 by 12