 <translate> Q: 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? <yor> Ìbéèrè: Ní ilé ìtajà ìwé, ìwé kan máa ń náni dọ́là márùn-ún. Nígbà tí Sheryll bá ra ìwé mẹ́wàá, wọ́n máa ń dín iye tí wọ́n ń ta ọ̀kọ̀ọ̀kan rẹ̀ kù sí iye tí wọ́n ń ta ìwé náà. Báwo ni owó tí Sheryll san ṣe pọ̀ tó? 