Answer:
red marbles=3/10,green marbles=3/10,blue marbles=4/10
Explanation:
The first thing I did is find the outcome which is the total number of marbles and finding the outcome to each marble knowing how much marbles are in one specific color like there are 3 marbles which are red and 10 marbles total so the outcome would be 3/10 chance in picking a red marble,the same goes to the rest of the colored marbles...sorry if I wrote too much