User contributions
- 18:46, 28 December 2012 (diff | hist) . . (+3) . . 2012 AMC 12B Problems/Problem 23 (→Solution)
- 12:57, 28 December 2012 (diff | hist) . . (0) . . 2012 AMC 10B Problems/Problem 25 (→Solution)
- 11:56, 28 December 2012 (diff | hist) . . (0) . . m 2012 AMC 12B Problems/Problem 21 (→Solution (Long))
