Asked by Dee

A section in a stadium has 20 seats in the first row, 23 seats in the second row, increasing by 3 seats each row for a total of 38 rows. How many seats are in this section of the stadium?



Please explain using words, numbers, and formulas.
Answered by Steve
Recall that Sn = n/2 (2a+(n-1)d)
Answered by Ur mom🕋🕋
2869 seats

Heh 69
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