To find the number of favorable outcomes for drawing a vowel from the letter tiles, we need to sum the number of tiles for each vowel from the table provided.
The distribution of vowels is as follows:
- A: 9 tiles
- E: 12 tiles
- I: 9 tiles
- O: 8 tiles
- U: 4 tiles
Now, we add these numbers together to find the total number of vowel tiles:
\[ 9 + 12 + 9 + 8 + 4 = 42 \]
So, the number of favorable outcomes for selecting a vowel is 42.