Answer:
The answer is in the image below
Answer: The value of P(E∪F) = 0.64.
Step-by-step explanation:
Since we have given that
P(E) = 0.38
P(F) = 0.38
P(E∩F) = 0.12
So, we need to find the P(E∪F).
As we know the formula for the sets.

Hence,the value of P(E∪F) = 0.64.
I would say C, because it makes the most sense
3/6 = 6/x+3
3x + 9 = 36
3x = 27
x = 9