Answer:
Discount before the Coupon
Step-by-step explanation:
The cost of two paperbacks at $8 each=2 X $8 =$16
First, we determine for the case in which the coupon is applied first.
If the $4 Coupon is applied,
Cost=$16-$4 = $12
If the 10% discount is further applied,
Amount to be paid = $12-(10% of $12) =$12-1.2= $10.8
However if the discount is applied first,
Book Cost=$16-(10% of $16)=16-1.6=14.4
If the Coupon is then applied,
Amount to be paid= $(14.4-4)=$10.4
Since $10.4 is less than $10.8, we conclude therefore that it is less expensive to apply the discount first.
