Prices are low because mathematics is a pleasure for me. Of course, instead of professional teaching knowledge you can rely on your colleagues - but will you risk your future base on their uncertain knowledge? I am sure that you want to continue your studies. But are you sure you can make it yourself?
Some branches of mathematics are very wide and require specific knowledge from you. So, if you are thinking that 60 minutes it's enought to learn how to integrate (without knowing the derivatives), then you are a dreamer. Mathematics is a very extensive science, and I am specialize just in a few areas, so please before you will contact with me check on my website which parts of math are my specialty.
If you don't want to learn or don't have the time, I can solve tasks for you and send it on e-mail. Or maybe your math problems are already solved - download here.