SOLUTION: is this sequence geometric or arithmetic or neither 3,5,9,15

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Question 833911: is this sequence geometric or arithmetic or neither
3,5,9,15
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
9-5=4
5-3=2
so it is not arithmetic

15/9=5/3
9%2F5++%3C%3E+5%2F3
so it is not geometric either
... so neither