Answer:

Step-by-step explanation:
In Venn sets, we have that:

In which n is the number of elements that each set contains.
In this question:

So

So

Angle a +angle b = 180 degrees
angle a + angle a + 30 = 180
2*angle a = 150
angle a = 75degrees
angle b = 75+30 = 105 degrees
now, angle b +angle c = 180
so, angle c = 180-105 = 75 degrees
There are now 10 balls in the bag since you took 1 green out
There are now 3 greens in the bag
3/10 is the chance you pick a green,so 7/10 is the chance you DIDNT pick a green ball for the first round
Second round:-1 ball that is not green now the number of ball is 9
10+9=19
(# of green balls still in the bag)3/19 final answer
The answer is 1/16.
When it comes to fractions, it's quite simple! If you can multiply, you can do this!
Simply write the the top number over the bottom so it looks normal. Multiply straight across. 1x1 is 1, and 8x2 is 16. Don't do anything else! It's 1 over 16 OR 1/16
There are no options! Please remember to put options or the question or even both that is even more helpful!!!!