Answer
If you are concerned about how long you should be studying after each class, you should feel open to ask your professor what they recommend. The truth is though, that the right amount of time spent studying will vary for everyone, even you! There may be days, for example, that you completely do not understand a lesson, in which case you should spend a good amount of time studying, until you feel comfortable with the material.
Work Step by Step
Intermediate Algebra (Sixth Edition) by Elayn Martin-Gay
Exercise Set 1.1: Tips For Success In Mathematics, Problem 10.
