User contributions
- 18:06, 29 December 2013 (diff | hist) . . (+1) . . m 2009 AMC 10B Problems/Problem 15 (Undo revision 58361 by Theriverinmarch (talk))
- 14:12, 23 December 2013 (diff | hist) . . (-1) . . 2009 AMC 10B Problems/Problem 15 (→Solution 2)
