Repeating The Course - To encourage the completion of remedial courses during the first year of college work, a student is limited to one repeat of a remedial course. To be able to take those concepts and apply them to real world problems. To develop sufficient understanding of the use of mathematics to be able to function in an increasingly technological society and job market. You are no longer in high school. The material is harder.
Expectations are higher.
Material will be covered 2 to 3 times faster than in high school. Class time is at a premium. Not every kind of example can be worked in class. No one learns mathematics without doing the work. The key to success in any mathematics course is to do at least the minimum assigned work, and to do it on schedule.