Welcome to instantcert. I too am taken the college math soon and as you might have seen on a previous posting, others have advised me to get the study guide,"Cracking The College Clep". You might want to look into getting that as it only cost me $6.95 plus mailing for a used book from Amazon.com.
Good luck and Iam sure others with respond to try and help you as we do have a very supportive group of fellow instantcerter's.