Yo tshan -
You're making it very clear that the problem in regards to a math course and not an English or grammar class!
Anyhow, you've previously been polite and rather humble, I suggest you don't tempt the others on this site to come to the defense of seasoned player. It's best to keep it upbeat.
This is not a good forum for you to vent your frustration with your assignment and/or your professor.
Just my 2 cents...