User contributions
- 18:42, 9 January 2020 (diff | hist) . . (0) . . 2001 AMC 10 Problems/Problem 20 (→Solution)
- 18:41, 9 January 2020 (diff | hist) . . (-1) . . 2001 AMC 10 Problems/Problem 20 (→Solution)
- 18:31, 9 January 2020 (diff | hist) . . (+51) . . 2001 AMC 10 Problems/Problem 20 (→Solution)
