Answer:

Step-by-step explanation:

{-84:(-4)=21 and -1764:(-84)=21 and -37044:(-1764)=21}
geometric sequence formula: 


The first has no r , only 0 since it is a straight line.
X = -1, y = 5. Hope this helps
Answer:
3a: 2c
Step-by-step explanation:


Answer:
i don't know
Step-by-step explanation: