A brick staircase has a total of 30 steps. The bottom step requires 100 bricks. Each successive

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A brick staircase has a total of 30 steps. The bottom step requires 100 bricks. Each successive step requires two less bricks than the prior step. 

(a) How many bricks are required for the top step? 

(b) How many bricks are required to build the staircase?

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Related Book For  answer-question

Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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