Andrea is shopping for items for her pet sitting business because the store is having a sale where everything in the store is 5% off. Andrea buys a cat carrier for $39.99 and a cat tower for $19.99. She has a coupon for an additional 15% off on the cat tower. Before tax, Andrea estimates that her total, after discounts, will be about $54. Determine if Andrea has estimated correctly.
Answer
A
Yes. Andrea has estimated correctly.
B
No. Andrea has taken 20% of the total, which is not correct..
C
No. Andrea has taken successive discounts on the total, but the coupon is just on the cat tower.
D
No. Andrea has only taken the 5% discount on the cat tower and not on the carrier.
Explanation
The carrier costs $39.99 × 0.95 = about $37.99 after the store discount. The tower gets both discounts: $19.99 × 0.95 × 0.85 = about $16.14. Together, the items cost about $37.99 + $16.14 = $54.13 before tax, which rounds to about $54, so Andrea has estimated correctly.
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