Answer:
10% of all three marbles drawn being green
Step-by-step explanation:
4 red marbles + 3 blue marbles + 7 green marbles = 14 total marbles
7/14 marbles are green so 1/2 chance
then, each time you pick up a marble, the chance for the marble decreases since you're not putting it back
7/14 x 6/13 x 5/12 = 0.09615
round to nearest tenth
0.10 or 10%