The answer would be B C E hope this helps :)
Answer:

Step-by-step explanation:
Given


Required

This is calculated as:

Since, it is a probability with replacement, we have:

So, we have:


-.x+7
-x+7=0
-x=-7
x=7...
Not too sure because of the way you wrote the question but this is the interpretation i gave it.
Letter B or π is an irrational number, therefore it's the answer.
7x+14-2x=-x+12-x-19
collect like terms
7x-2x+X+X+19=12-14
7x+19+2
7x=-21
x-21/7
X=-3