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— If there are 16 seats in the first row, 18 seats in the second row, 20 seats in the third row , and so on, how many seats are there in all? Follow • 1 ... This is an arithmetic series with a difference of 2. a1 = 16 ... what is an equation equal of a line parallel to y=2/3x-4 and goes through the point (6,7). Answers · 3 ...

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