Step 1:

The length of the rectangular is $\"\"$ inches.

The width of the rectangular is $\"\"$ inches.

The height of the rectangular box is $\"\"$ inches.

Volume of rectangular box is $\"\"$ .

Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$

$\"\"$ inches³.

The volume of the rectangular is $\"\"$ inches³.

Solution:

The volume of the rectangular is inches³.

$\"\"$

Rewrite $\"\"$ and $\"\"$

$\"\"$

Cancel common terms.

$\"\"$