Which describes this type of series?

Algebra
Tutor: None Selected Time limit: 1 Day

-20 - 18 - 15 - 11 - …

A: neither arithmetic nor geometric

B: geometric

C: both arithmetic and geometric

D: arithmetic

May 22nd, 2015

C: both arithmetic and geometric

May 22nd, 2015

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May 22nd, 2015
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May 22nd, 2015
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