Type the correct answer in the box. Use numerals instead of words.
For this item, if the answer is not a whole number, enter it as a fraction in simplest form using / as the fraction bar.

Isolde is stacking books. The stack of books forms a rectangular prism.







Each book is the same size. Isolde knows the area of the base of one book is square inches and each book is inch thick.

The volume of a stack of 9 books is_______cubic inches.

Type the correct answer in the box Use numerals instead of words For this item if the answer is not a whole number enter it as a fraction in simplest form using class=