Respuesta :

A) arithmetic because it is a constant. E.g 5-2 is 3 and this is true through out the series

B) this is geometric because the ratio is constant. The ratio of each is 3. E.g 81/27= 3 and this is true through out the series

C) arithmetic because it is constant. 11-3= 8, and 8 is the answer through out the series

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