Answer:
C. Third option
Step-by-step explanation:
C is the correct answer, because the common ratio is a change from one number into the next in a geometric sequence.
Hope this helps!
Im no genius or sure if its right, but I would definetly go with (12,4)
Answer:
D. 
Step-by-step explanation:
The given expression is;

This is the same as;

The denominators are the same.
Subtract the numerators and write one denominator;

Rewrite to get;

Disagree. Even though it has no b it is still a line but a horizontal line. It will be at 7 on the y- intercept but horizontal.