User contributions
- 01:32, 18 February 2018 (diff | hist) . . (+1) . . m 2018 AMC 10B Problems/Problem 20
- 01:32, 18 February 2018 (diff | hist) . . (+36) . . m 2018 AMC 10B Problems/Problem 20
- 18:37, 16 February 2018 (diff | hist) . . (+808) . . 2018 AMC 10B Problems/Problem 20
- 19:28, 12 February 2018 (diff | hist) . . (+214) . . m 2018 AMC 10A Problems/Problem 3
- 18:46, 8 February 2018 (diff | hist) . . (+72) . . 2018 AMC 10A Problems/Problem 20 (→Solution)
