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January 31, 2015

January 31, 2015

Posted by **Jamie** on Wednesday, November 14, 2012 at 9:51pm.

- Math -
**Reiny**, Wednesday, November 14, 2012 at 10:13pmlet the number of rows be n

then the number of seats in each row is n-3

n(n-3) = 108

n^2 - 3n - 108=0

(n-12)(n+ 9) = -

n = 12 or n = -9 , but we can't have a negative number of rows

there are 12 rows

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