Every high school has FREE tutoring available. Speak with your counselor to learn about when tutoring is available at your school.
Additional resources for tutoring/ test preparation inlcude:
ACT Compass Assessment preparation guide: most community colleges use the ACT compass as an assessment to evaluate your skills and place you in appropriate classses.
Khan Academy: this is an amazing FREE resource of 800+ videos on YouTube covering everything from basic arithmetic and algebra to differential equations, physics, and finance which have been recorded by Salman Khan.
SAT question of the day: prepare for the SAT
SAT subject test: prepare for the SAT Subject tests.