User contributions
- 19:15, 23 August 2011 (diff | hist) . . (+12) . . 2005 AMC 10B Problems/Problem 20 (→Solution)
- 19:14, 23 August 2011 (diff | hist) . . (+501) . . 2005 AMC 10B Problems/Problem 20 (→Solution)
- 19:03, 23 August 2011 (diff | hist) . . (+262) . . 2005 AMC 10B Problems/Problem 20 (→Problem)