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- 16:48, 20 February 2014 (diff | hist) . . (+1) . . 2014 AMC 12B Problems/Problem 20
- 16:47, 20 February 2014 (diff | hist) . . (+287) . . N 2014 AMC 12B Problems/Problem 20 (Created page with "The domain of the LHS implies that <cmath>40<x<60</cmath> Begin from the left hand side <cmath>log_{10}[(x-40)(60-x)]<2</cmath> <cmath>-x^2+100x-2500<0</cmath> <cmath>(x-50)^2>0<...")
