PLEASE HELP ME I WILL GIVE BRAINLIEST!! 9 PLEASSSEEEE

Answer:
[tex]\frac{2}{9}[/tex]
Step-by-step explanation:
there is a four out of nine change to get a green marble
there is a 1/2 change to get heads
[tex]\frac{4}{9}[/tex]×[tex]\frac{1}{2} =\frac{2}{9}[/tex]