$\"\"$

The inequality is $\"\"$ .

Apply distributive property: $\"\"$ .

$\"\"$

Add 15a to each side.

$\"\"$

$\"\"$ $\"\"$

Add 36 to each side.

$\"\"$

Divide each side by 27.

$\"\"$

Cancel common terms.

$\"\"$ . $\"\"$

The solution set is $\"\"$ and its graph is $\"graph$

Note: A open circle means that this point is not included in the solution set. $\"\"$

The solution set is $\"\"$ and its graph is $\"graph$