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Which is an arithmetic sequence?A)9, 12, 16, 20...B)9, 11, 13, 16...C)1, 5, 9, 13, 17...D)12, 14, 16, 18...

Answer :

Answer: https://www.khanacademy.org/commoncore/grade-HSF-F-IF#HSF-IF.A.3

Step-by-step explanation:

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