What does a high school diploma do for a student? a. it guarantees entrance into college. b. it serves as a foundation for additional education. c. it shows colleges that the student has knowledge of only a few subjects. d. it makes the student less attractive to employers.

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.