If you divide each number by the previous one, you get:
-86 / -172 = 1/2
-43 / -86 = 1/2
-21.5 / -43 = 1/2
The common ratio is 1/2 = 0.5
Answer:
m= - 396.253089
Step-by-step explanation:
hope this helps
Answer:
-6 + 4 = -2
Step-by-step explanation:
I know.
