There are

2 answers:

7 0

17 books in total, and 8 new. To find the number of used books, we subtract 8 from 17.

17-8= 9 used books

Now we have 8 new books and 9 used books.

All books: 17
Used books: 9
New books: 8

(a) all books: used books
17: 9

(b) new books: used books
8: 9

IgorC [24]3 years ago

6 0

17 books
You would do 17-8
= 9 used books

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