User contributions
- 21:44, 28 March 2011 (diff | hist) . . (0) . . m 2011 AIME I Problems/Problem 1 (fix typo)
- 21:38, 28 March 2011 (diff | hist) . . (+570) . . 2011 AIME I Problems/Problem 1 (Add an easier way to arrive a 80% acidity)
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