The answer is B because if you make plot the the numbers on a grid as coordinates a linear function is created.
So,
(9 - 11) - (2 2/3 +6 1/3)
-2 - 10
-12
The change was of -12.
(The parentheses weren't needed, i just put 'em there)
Step-by-step explanation:
it seems the answer is four (option a)
