Answer:
0, 1/4, and 1/3 chances
Explanation:
First add all the marbles up.
10 + 6 + 8 = 24
There are no red marbles ever mentioned, so the probability of a marble being red is 0, no chance.
There are 6 green marbles, so that's a 6/24 chance, or 1/4.
There are 8 yellow marbles, so that's a 8/24 chance, or 1/3.
Hope this helps :)