Art of Problem Solving
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2007 AMC 8 Problems/Problem 18: Revision history

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31 December 2022

26 December 2022

16 August 2021

1 August 2021

20 April 2021

27 October 2020

30 August 2019

12 November 2017

8 November 2017

5 July 2013

9 December 2012

12 November 2012

7 June 2011

14 November 2010

31 October 2010