User contributions
- 08:33, 9 February 2017 (diff | hist) . . (-144) . . 2017 AMC 12A Problems/Problem 21 (Switch to tabular)
- 07:58, 9 February 2017 (diff | hist) . . (+63) . . 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 07:46, 9 February 2017 (diff | hist) . . (+18) . . m 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 07:43, 9 February 2017 (diff | hist) . . (-10) . . m 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 22:51, 8 February 2017 (diff | hist) . . (-71) . . m 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 22:38, 8 February 2017 (diff | hist) . . (-13) . . 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 22:08, 8 February 2017 (diff | hist) . . (-12) . . 2017 AMC 12A Problems/Problem 21 (→Solution 1)
- 22:07, 8 February 2017 (diff | hist) . . (+1,500) . . 2017 AMC 12A Problems/Problem 21 (Add solution 1)
