SOLUTION
From the question, we want to find the probability of selecting a slip of paper with the letter t on it, then selecting the letter r, with replacement.
This means the probability of selecting t and r.
That is

There are 12 letters (total outcomes). And there are 2r and 2t.
So probability becomes

Hence the answer is
Answer:
6 - b
Step-by-step explanation:
b doesn't have a value.
8+2x=6x
subtract -2x on both sides
8=4x
Divide by 4 on both sides
2=x
all you need is the story :)