how long do u need to study a day at home for the best results in school?

Answer 1

30 minutes to an hour per test

Answer 2

Study EVERY day for just 5 or 10 minutes. Just look over what you learned that day while you're waiting in line, or waiting for your food to come at a restaurant, waiting at a stoplight, anytime. It really works. Whatever you do, don't cram the night before a test. It doesn't work.