Help for precalculus is available at numerous websites and in person at tutorial centers. Websites like Coolmath.com and TheMathPage give topic overviews and examples of how to work specific types of problems. Mathway.com allows people to enter an actual problem and works it out for them.
Tutor.com gives one-on-one help for a fee. Tutorial centers for in-person help differ throughout the country, but most are easy to find. Local college students are good resources for tutoring as well, and they often post their information on bulletin boards around the school. In addition, some colleges match students with tutors or have help labs.