Final answer:
Coupon A provides a 40% discount, resulting in a price of $30.60 for the pants, which is $2.40 less than Coupon B's final price of $33. Coupon A offers the better saving.
Step-by-step explanation:
Donna has two coupons for pants, and we need to determine which coupon gives the lower price. The price of the pants is $51. Let's calculate the discount and the final price for each coupon.
- Coupon A offers 40% off. To calculate the savings, we multiply $51 by 40% (0.40). So, the discount is $51 × 0.40 = $20.40. Subtracting this from the original price, the pants with Coupon A will cost $51 - $20.40 = $30.60.
- Coupon B offers an $18 rebate. Subtracting the rebate from the original price, the pants with Coupon B will cost $51 - $18 = $33.
Comparing the two final prices, Coupon A gives the lower price at $30.60, and it is $33 - $30.60 = $2.40 less than the price with Coupon B.