Well, this site is primarily a question and answer type of site. We do, on occasion, solve problems in great detail and do a little teaching along the way. But noone has the time to teach, say, a topic from an intermediate algebra text. We're here if you get stumped while doing homework or whatever, and we try to get you back on track with hints and suggestions if not the entire solution. We try not to do all the work for you. Rather, we engage you in such a way that you can think through the problem by taking one of our helpful hints.
Most of the members here are students, teachers, professors or other professionals who have a particular set of math skills. We are all volunteers and have lots of other responsibilities.
My suggestion to you is to find a good tutorial site on the Internet and pace yourself.
Try Virtual Math Lab - Intermediate Algebra
There are many others, but this one seems to meet the requirements you talked about.
Good luck. You must be pretty skilled in Algebra if you want to jump right into PreCal.