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Mathematics 9 Online
OpenStudy (anonymous):

help

OpenStudy (dumbcow):

so start with 9 then add 2 each time 9,11,13,15,17 ... \[A_n = A_{n-1} + 2\] or \[A_n = 9 + 2(n-1)\] plug in n=12 to find num seats in 12th row

OpenStudy (dumbcow):

yep

OpenStudy (anonymous):

jamie go to the other question you had up i have it there

OpenStudy (dumbcow):

haha really you dont even recognize the answer right in front of you

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