 
 <translate> For this chain-of-thought reasoning and answer, what was the question?
Instead of $5 each, a book costs $5 - $0.5 = $4.5 each. Sheryll paid $4.5 / book x 10 books = $45.
 A: 45 <ibo> Maka usoro echiche a na azịza ya, gịnị bụ ajụjụ ahụ? Kama ịbụ $5 nke ọ bụla, akwụkwọ na-efu $5 - $0.5 = $4.5 nke ọ bụla. Sheryll kwụrụ $4.5 / akwụkwọ x 10 akwụkwọ = $45.  Azịza: 45 