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?
Instead of $5 each, a book costs $5 - $0.5 = $
<gadget id="calculator">5-0.5</gadget>
<output>4.5</output>
4.5 each.
Sheryll paid $4.5/book x 10 books = $
<gadget id="calculator">4.5*10</gadget>
<output>45</output>
45.

<result>45</result>