ASAP PLSSS ALL MY POINTS Use sigma notation to represent the sum of the first seven terms of the following sequence: 4, 10, 16, …

the summation from n equals 1 to 7 of negative 4 plus 6 times n
the summation from n equals 1 to 7 of 4 plus 6 times n
the summation from n equals 1 to 7 of 2 plus 6 times n
the summation from n equals 1 to 7 of negative 2 plus 6 times n

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i really need help on this one too

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