**Unanswered.**

http://web2.0calc.com/questions/2x-10-y-and-y-x-2-elimination-problem

http://web2.0calc.com/questions/area-problem_1

http://web2.0calc.com/questions/solve-for-x-50-x-2-x-3

**More answers invited or requested. **

Melody Nov 11, 2014