Algebra-1

To determine if the sequence is arithmetic, geometric, or neither:

1.Arithmetic Sequence:

Calculate the differences between consecutive terms:

18 - 36 = -18

9 - 18 = -9

4.5 - 9 = -4.5

The differences are not constant, so the sequence is not arithmetic.

2.Geometric Sequence:

Calculate the ratios between consecutive terms:

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