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There are 12 seats in the front row of the theater.  Each row has four more seats in the row in front of it.  How many seats are there in the first eight rows?

 Jan 13, 2020
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12 + 16 + 20 + 24 + 28 + 32 + 36 + 40 =    ??   cheeky

 Jan 13, 2020

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