Revision history of "2005 CEMC Gauss (Grade 7) Problems/Problem 21"

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  • (cur | prev) 14:00, 23 October 2014RTG (talk | contribs). . (1,151 bytes) (+1,151). . (Created page with "== Problem == Emily was at a garage sale where the price of every item was reduced by <math>10\%</math> of its current price every <math>15</math> minutes. At 9:00 a.m., the pri...")