Respuesta :

0.8,16,24 is arithmetic

7,12,17 is arithmetic

6,12,24 is not arithmetic as common difference is not Constant

8,14,20 is arithmetic

11,18,23 is not arithmetic

12,17,22 is arithmetic

15,30,60 is not arithmetic

Answer:

The answer is C and E

Step-by-step explanation: just did the assignment

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