Do I pay for every course I take? If I take more than one course at once, do I pay more?

Not if you enroll into a degree program! You'll pay a flat monthly tuition, which means even if you take two or three courses in one month, you'll pay the same flat tuition as if you're taking one course.

If your grades are good, take more courses at once and finish sooner. Because you're faster, you'll finish faster – and save more money.