Final answer:
After applying a $4 coupon to the regular $14 price of a CD, the final price that a customer will pay is $10.
Step-by-step explanation:
The question involves a simple subtraction to find out the final price a customer will pay for a CD after applying a coupon at the music store. If the regular price of a CD is $14 and the customer has a $4 coupon, we subtract the coupon value from the original price to determine the final cost.
So, the calculation would be $14 (original price of the CD) minus $4 (coupon value). $14 - $4 = $10. Therefore, the final price the customer will pay for the CD is $10.