Answer:
15 ways
Step-by-step explanation:
The answer would be 6 choose 2, which is:
[tex]\frac{6!}{2!4!} = \frac{6\cdot5\cdot4!}{4!2!}=\frac{6\cdot5}{2}=15[/tex]
Therefore, there are 15 ways to choose 2 of the 6 water bottles Alan has.
By the way, if this helps, could you please give me brainliest? :)