Answer:

Explanation:
1. There are 9 balls in total in the first box, and 6 red balls in there so we would represent this as
and that can be simplified to
.
2. There are 5 balls in total in the second box, and 2 blue balls in there, so we would represent this as
. This can't be simplified, so we leave it like that.
3. Because it's a consecutive event we multiply the probabilities, which gives us
. This can't be simplified, and that gives us our answer.