Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
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?

### Response:
 Badala ya $5 kimoja, kitabu kina gharama ya $5 - $0.5 = $<<5-0.5=4.5>>4.5 kimoja.
Sheryll alilipa $4.5 kwa kila kitabu x vitabu 10 = $45.