User contributions
- 15:51, 26 February 2012 (diff | hist) . . (+135) . . N 2012 AMC 12B Problems/Problem 12 (Created page with "There are 20 Choose 2 selections however, we count these twice therefore 2* 20 C 2 = 380. The wording of the question implies D not E.")
- 19:05, 20 February 2012 (diff | hist) . . (+7) . . N 1989 AHSME Problems/Problem 15 (Created page with "Newchie")
