let Me tell you, that your Math skills are absolutely unacceptable. and as your math teacher I wanna see your step-Daddy after classes. you think that I never noticed what you been doing during the classes? time to change that. I will teach you how to be a good boy... at least for Me... and if something would be not clear - ask your step-Daddy, he will tell you that I taught him well after classes ;) it is really easy Math!