C
By subtracting 18 to both sides you are separating the 3x because you are not ready to isolate the variable (x) in step 1
68% due to more 1,2, and 3's
Step-by-step explanation:
g(n-7) = (n-7) ^2-6/7 (n-7) = n^2 -14n+49-6/7 n +6= n^2-104/7 n +55
Recall that the slope is the "average rate of change" of any function.

Answer:
2/5
Step-by-step explanation:
I found two point and counted the Y change and the X change. Rise over run.