Answer to Question #90997 in Algebra for Doug

Question #90997

Select the option for "?" that continues the pattern in each question.
58
3, -6, 12, 4, 20, ?

13
14
6
16

Expert's answer

The option 13 continues the pattern 3, -6, 12, 4, 20.

The pattern is 3 - 9 + 2×9 - 8 + 2×8 - 7 = 13.

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