So what I do was 10 divided by 10 which is 1 and 1 is 10% of 10 so since the increase is by 2 multiply the 10% by 2 so the increase is 20 percent
Answer:

Step-by-step explanation:
We want to subtract
from
.
We set up the subtraction problem as follows:
.
We expand the brackets to obtain;
.
We regroup the terms to obtain;
.
We now simplify to obtain;
.
0, -4, -8, -12, -16, -20, -24, -28, -32, -36, -40, -44, -48, -52, -56, -60, -64, -68, -72, -76, -80, -84, -88, -92, -96, -100, -104, -108
-108 is the 28th term. This is one way to do it (to visualize it the long way).
Hope this helps :)
Yes. It is a Geometric sequence!
Common ratio = a2/a1 = 12/6 = 2
In short, Your Answer would be Option A
Hope this helps!