Question: In a bookstore, a book costs $5. When Sheryll bought 10 books, she was given a discount of $0.5 each. How much did Sheryll pay in all? Think carefully first, then make a decision:
Instead of $5 each, a book costs $5 - $0.5 = $4.5 each. Sheryll paid $4.5 / book x 10 books = $45. So the answer is 45.