30 points me which choice is the simple formula for the nth term of the following arithmetic sequence? 6, 2, -2, -6, -10,

Given sequence: 
6,2,-2,-6,-10,...
First we have to find the common difference.
d= 2-6=-4
d=-2-2=-4
d=-6-(-2)=-6+2=-4
So common difference is -4.

Which means it is an arithmetic sequence.

Formula for the given sequence is:
an= a1+ (n-1)d
an=6+(n-1)(-4)
an=6-4n+4
an=-4n+10

an=-4n+10

The answer for this question is 80

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