Usually these kinds of tests are timed, so if you do not know the contents you probably fail. I can help you with that if you need to reach a good score.
If you need to do a hard assignment or if you do not have time to do it, then send me it and I tell you immediately, If I can do it before the due date.
Usually homework questions are easier than tests or exams but maybe you need 100% on them, I can reach a perfect score on this kind of questions.
I have a Stats degree and I work as a teacher since 1998. I work online in several sites since 2005, but now I work from here. Feel free to send me your math questions/assignments with the due date and I reply asap. If you are a high-school student or University student surely I will do a good work with your math problems. Be clear about what you are needing, and tell me how much time I have to solve your questions.