Topic 9 Study Guide - Wayne County

4. A librarian is putting hardcover books on a bookshelf. The books are all about the same size. If she can fit 42 books on the top shelf, estimate the total number of books she will be able to put on the whole bookshelf. The top shelf can hold about of the books, so the total number of books is 42 × 4 or 168 books. ................
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