Hi,
I haven't taken any of the exams, but have you considered using McGraw-Hill's ALEKS to review? I took through calc in high school and too many years later to reveal, the stuff still looks familiar, and it's coming back to me. It is self paced, start any time, and has periodic assessments so you can check your progress. There is also the option for a step-by-step explanation, which I have found useful.
Search other posts on this board. The site is
ALEKS -- Assessment and Learning, K-12, Higher Education, Automated Tutor, Math, and there is a free trial before you pay $20 a month. Plus, I've read (also here) that ALEKS is ACE-reviewed. I am not enrolled at TESC yet, but someone who is currently enrolled might be able to check with an advisor to see whether ALEKS might earn the math credit instead of having to sweat an exam. I have thought that at least I would be prepared for the exams if I enroll and find out that TESC does not allow credit for this work.
Hope this helps,
Sandy