Step-by-step explanation:
Step 1: Multiply both sides by 2
[tex]9 > \frac{1}{2}r[/tex]
[tex]9 * 2 > \frac{1}{2}r * 2[/tex]
[tex]18 > r[/tex]
Step 2: Determine what numbers would be a valid solution
Any number that is greater than 18, not including 18 would pose a valid solution to the expression that was provided.
