Total cost of books was 15 + 10 or 25. With the 50 % discount on the $10 book, the total is now $20. The total cost was reduced by (B) 20%.
$5 off the $25 price is a 20% discount.
The last one
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Answer:
Step-by-step explanation:
1.17/10
2.6/5
3.11/5
