PLEASE HELP WILL MEDAL

Find the common ratio, r, in the following geometric sequence.
2, -6, 18, -54, …

3

–3

4

9

Jamal has saved $450 in 6 months. Express his rate of savings as a unit rate.

$150 every 2 months

$75 every month

$70 every month

$450 every 6 months

Question

PLEASE HELP WILL MEDAL 


Find the common ratio, r, in the following geometric sequence.
2, -6, 18, -54, …


		
3

		
–3

		
4

		
9


Jamal has saved $450 in 6 months. Express his rate of savings as a unit rate.


		
$150 every 2 months

		
$75 every month

		
$70 every month

		
$450 every 6 months

sshayer · Answer

$$common ~ratio~r=\frac{ a _{n} }{ a _{n-1} },$$

karim728 · Answer

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