<PRE><B>Question 766248</B>
 I really need help solving the following problem. An outdoor amphitheater has 29 seats in the first row, 31 in the second row, 33 in the third row, and so on. There are 36 rows altogether. How many can the amphitheater seat?
a(36) = 29+(35)*2 = 99
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S(33) = (33/2)(2+99)
s(33) = 33*50 = 1650 (amphetheater capacity)

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Cheers,
Stan H.
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