This is a placeholder bid, as sadly I couldn't post this on the clarification board as I haven't yet received a review for a project posted under the matlab section of the site; without seeing the volume of material, it's impossible to estimate how many hours will be needed.
I have tutored college level courses before, and produced model solutions for postgraduate mathematics texts, so the "beginning algebra" course should pose few problems.
My timezone is GMT, which shouldn't make a difference as far as your online course is concerned, but it may mean that live communication is more difficult should you need to discuss something over skype.
In any case, congratulations, and good luck with the future.