I was very confident that you would REALLY succeed until I saw your last real math class was Algebra 1. It's doable.
College Algebra is chocked full of Algebra II.
You can live with out geometry and still succeed.
I best advice is to either go to your local cc and take non-credit math classes to play catchup and then take the math courses OR
get yourself a tutor, test yourself out of as much math as possible, and then go from there. A placement test is actually a good idea for you since you've been on/off for the last 30 years. I would definitely study for it - it might just get you out of those non-credit math classes!
Good luck. I have no doubt you will get your degree but you've got some major (mathmatical) hurdles to overcome. Don't give up because CLEPs and DSSTs are a great gateway to a quick degree. Listen, people have overcome large hurdles before - if they can do it, you can do it!!
You've got to stick to it this time around!