Question: A brick staircase has a total of 25 steps. The bottom step requires 80 bricks. Each successive step requires three less bricks than the prior

A brick staircase has a total of 25 steps. The bottom step requires 80 bricks. Each successive step requires three 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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