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Mathematics 18 Online
OpenStudy (anonymous):

If the sequence is geometric, give its common ratio. 800, 400, 200, 100 ...

OpenStudy (asnaseer):

you can use the same method that @campbell_st taught you in your previous question for this one as well : http://openstudy.com/updates/5016f0f8e4b04dfc808b2af7

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