If you posted a question that has not been answered, here are a few possible reasons:
1.) If it appears you are posting most of your assignment on the forum, it probably will not get answered.
2.) You need to give it enough time. This is not a calculator. It may not be answered within seconds or minutes. People actually have other responsibilities in life. If it relates directly to this site, it will probably be answered and explained thoroughly, but it may take some time. Relax! Do something else, and stop back later!
3.) Your question may not be relative to this site. Most people using this site are involved with Basic Math,
Pre-Algebra, Algebra 1, Algebra 2, and Geometry. If you are asking Calculus, Chemistry, or Physics questions, they probably will not get answered.