Answer:
is the common ratio
Step-by-step explanation:
Common ratio(r) states that the ratio of each term of a geometric sequence to the term preceding it.

Given the sequence:
225, 45, 9, .........
Here,


and so on...
Using definition to find r.

After solving we get;

Therefore, the common ratio is, 
Answer:
72
Step-by-step explanation:
15 + 15 + 12 + 12 + 18 gives you 72 you add all the areas
The slope is -3/1 so to find other points, go to (2,-1) and go down 3, over 1.
Answer:
Linear
Step-by-step explanation:
The numbers add by 4 it’s not scrambled
Answer:
6x - 9
3(2x−3)
2a(5b+3)
Step-by-step explanation:
Factor 6a+10ab
10ab+6a
Factor 6x−9
6x−9
=3(2x−3)
:))