Note: Express your answer to the lowest form!
a.The ratio of the second number to the first.
b.The ratio of the fourth to the third.
1) 3, 5, 7, 9 3. a.___b.___
2) 4, 8, 12, 16 a.___b.___
3) 2, 6, 18, 54 a.___b.___
4) 125, 5, 1, 1/5 a.___ b.___
5) 128,-64, 32, -16 a.___ b.___

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