Answer:
119 Cans Left
Step-by-step explanation:
If bob brought 16 packs of soda, and each pack had 8 cans, there would be 128 cans. This is because 1 pack is worth 8 cans.
16 × 8 = 128
128 - 9 = 119
Bob drank 9 of the cans, which is the same as subtracting from 128. This gives us the answer.