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Mathematics 16 Online
OpenStudy (anonymous):

A local civic theater has 22 seats in the first row and 21 rows in all. Each successive row contains 3 additional seats. How many seats are in the civic theater?

OpenStudy (anonymous):

22+25+28+31+34+37+40+43+46+49+52+55+58+61+64+67+70+73+76+79+82

OpenStudy (anonymous):

or 1092

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