REASONING You borrow bookcases like the one shown to display 943 books at a book sale. You plan to put 22 books on each shelf. No books will be on top of the bookcases.

A drawing of a bookcase, with 5 shelves.

a. How many bookcases must you borrow to display all the books?

You need
bookcases.

b. You fill the shelves of each bookcase in order, starting with the top shelf. How many books are on each shelf of the last bookcase?

Top shelf:
books

Second shelf:
books

Third shelf:
books

Fourth shelf:
books

Bottom shelf:
books