It’s 4/3. The sequence is all multiplied by 1/3 so the 5th term is 12,6th is 4, and 7th is 4/3
0.08333333333333 would be the answer, and the 3 would keep repeating.
9 + n = x ?
i'm guessing since there's no answer to what the sum is
Answer:

Step-by-step explanation:
Given
The attached plot
Required
The line of the best fit using
and 
We have:


Calculate slope (m)




The equation is then calculated using:


Expand


Theirs your answer 661.091628959