Suppose you have a coupon for 10% off and you use it to buy a cd which was already discounted 15%. do you end up with a discount of 25%. explain your answer.

No because the extra 10% is off the discounted price, not the original. image that the CD originally cost $10. 15% off of the CD would make the price $8.50. Another 10% off of $8.50 would make the price that you have to pay $7.65. 25% off of the original price of $10 would make the price $7.50. Sorry if its a bit confusing but I hope that helps!