# There are 17 books on a shelf. 9 of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio of all books to used books?

(1) Answers

a.) 9 new : 8 used b.) 17 all : 8 used

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(1) Answers

a.) 9 new : 8 used b.) 17 all : 8 used

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