I can teach math. I offer you some sessions of the topics. I have some limitations right now, for example I dont have a microphone to skype. I can give you suggestions about solve problems. I need to review some concepts like combinatorics, or number theory, but I can do this. Hope you have some problems to work, in other case, I will find some. We need to practice some days, not just one. I know more advanced theory like vector spaces, in some cases I can help you to solve some problems kinda quick