am i right?
A store displays six computers on a shelf side–by–side. If the first computer is eight inches wide and each successive computer is four inches wider than the previous one, find the total width of the computers on the shelf.
Part 1: Describe the sigma notation used in answering the question above. (2 points)
Part 2: Show all your work and answer the question. (3 points)

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8
∑ 4 + 4n
n=1
∑ 4 + 4n = 4 ∑ 1 + n
4 * 8 + 4 ∑ n
32 + 4 [8 * 9 / 2]
32 + 40
72 inches

ok can you help me then @jim_thompson5910

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