Asked by Jay

An auditorium has 150 rows of seats. The first row has 15 seats, the second row has 17 seats, the third row has 19 seats, and so on, each row having two more seats than the previous row. How many seats are there together in the auditorium.
Answered by Steve
S150 = 150/2 (2*15 + 149*2)
Answered by Santiago R.
150 / 2 ( 2 x 15 + 149 x 2) what does that equal?
Answered by Anonymous
24600
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