$\"\"$

The expression is $\"\"$ .

The perfect square less than 68 is 64.

The perfect square greater than 68 is 81.

The compound inequality is $\"\"$ .

$\"\"$ (Identify perfect squares closest to 68)

$\"\"$ (Take positive square root of each side)

$\"\"$ (Write 64 as $\"\"$ and 81 as $\"\"$ )

$\"\"$ (Cancel squares and roots)

64 is closer to 68 than to 81, so the nearest integer, $\"\"$ . $\"\"$

The square root to the nearest integer is $\"\"$ .