User contributions
- 23:26, 23 February 2012 (diff | hist) . . (+1) . . 2012 AMC 12B Problems/Problem 15
- 23:26, 23 February 2012 (diff | hist) . . (+184) . . 2012 AMC 12B Problems/Problem 15
- 22:22, 16 February 2012 (diff | hist) . . (+2) . . 2012 AMC 12A Problems/Problem 20
- 21:54, 16 February 2012 (diff | hist) . . (0) . . 2012 AMC 10A Problems/Problem 19
