Final answer:
The rug will cost $47.6 with the 15% off coupon.
Step-by-step explanation:
To find out how much the rug will cost with the coupon, we need to calculate the 15% discount on the original price of $56. We can do this by multiplying $56 by 15% (which is 0.15), and then subtracting that result from $56.
The calculation would be:
Discount amount = $56 x 0.15 = $8.4
Rug price with discount = $56 - $8.4 = $47.6
Therefore, with the 15% off coupon, the rug will cost $47.6.