Which of the following sequences is not an arithmetic sequence? 0, -2, -4, -6, ... 1, 5, 9, 13, ... 15, 12, 9, 6, ... -1, -2, -4, -8, ...

D. -1,-2,-4,-8

Step-by-step explanation:

An arithmetic sequence means that there is a pattern between the numbers that is constant, that deals with either adding or subtracting.

The last sequence here, is not arithmetic because it is being multiplied by 2 every time.

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step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right