the library charges $5 for a library card plus $2 for each book you check out. what is the most amount of books you can get if have at most $14 to spend?

Question

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Answer 1

2b + 5 ≤ 14

2b ≤ 9

b ≤ 4.5

 

We can't check out half a book, and the next lowest whole number is 4, so 4 books.