Math
the first row in a theater has 8 seats. each subsequent row has 3 more seats than the row before it. there are 10 rows in the orchestra section. how many seats are in the orchestra section?
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Anonymous

each time you move to the next row you should add 3 to the row before it.
8+11+14+17+20+23+26+29+32+35=215 seats
posted by dania
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