To find the original price of each apple, let's denote the original price of each apple as \( x \).
Since Eve bought 12 apples and received a 25 cent discount per apple because she purchased 4 or more, the price per apple after the discount becomes \( x - 0.25 \).
The total cost for 12 apples with the discount is given by:
\[ 12(x - 0.25) = 15 \]
So, the correct equation to solve the problem algebraically is
\[ 12(x - 0.25) = 15 \]
This matches your last option:
12(x−0.25)=15.