User contributions
- 00:26, 24 February 2012 (diff | hist) . . (+1) . . 2012 AMC 12B Problems/Problem 15
- 00:26, 24 February 2012 (diff | hist) . . (+184) . . 2012 AMC 12B Problems/Problem 15
- 23:22, 16 February 2012 (diff | hist) . . (+2) . . 2012 AMC 12A Problems/Problem 20
- 22:54, 16 February 2012 (diff | hist) . . (0) . . 2012 AMC 10A Problems/Problem 19