User contributions
- 04:55, 17 February 2017 (diff | hist) . . (+114) . . m 2017 AMC 12B Problems/Problem 21 (→Solution)
- 04:53, 17 February 2017 (diff | hist) . . (+1,732) . . 2017 AMC 12B Problems/Problem 21 (→Problem 21)
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