To determine how many more hours Tyrell needs to volunteer to reach his goal of 26 hours, we can set up the following equation:
\[ h + 17 = 26 \]
Here, \(h\) represents the number of hours Tyrell still needs to volunteer.
Now, we can solve for \(h\):
- Subtract 17 from both sides of the equation:
\[ h = 26 - 17 \]
- Calculate the right side:
\[ h = 9 \]
So, Tyrell still needs to volunteer 9 hours to reach his goal for this month.