User contributions
- 17:16, 13 September 2012 (diff | hist) . . (-10) . . 2012 AMC 10B Problems/Problem 16 (Solution to AMC 10B 2012 #16)
- 17:15, 13 September 2012 (diff | hist) . . (+676) . . N 2012 AMC 10B Problems/Problem 16 (Solution to AMC 10B 2012 #16)