The corner section of a football stadium has 15 seats in the first row and 40 rows

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The corner section of a football stadium has 15 seats in the first row and 40 rows in all. Each successive row contains two additional seats. How many seats are in this section? 

The corner section of a football stadium has 15 seats

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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