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May 30, 2015

Homework Help: Algebra 2

Posted by Please check my answer (: on Thursday, March 15, 2012 at 3:22am.

The first row of a concert hall has 20 seats, and each row after the first has one more seat than the row before it. There are 30 seats.
a)write a rule for the number of seats in the nth row
b) 40 students from a class want to sit n the same row.how close can they sit?

For (A) I got n+19 and for (B) I got 21

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