Respuesta :

f4ke

Answer:

Arithmetic.

Step-by-step explanation:

Geometric sequences have common ratios. Arithmetic sequences have common differences.

Answer:

Below.

Step-by-step explanation:

Try subtracting the terms to see if its arithmetic:

-5 - -9 = 4

-1 - -5 = 4

3 - -1 = 4

7 - 3 = 4

The common difference is 4 so its arithmetic.

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