Advice from Previous Advanced Math Students...
Don't expect the class to be a breeze.  The math is much harder and anyone not expecting this will get behind...
You need to stay calm if you don't understand what Mrs. Hedgepeth says.  If there is something you don't understand, ASK HER - don't think it will come to you later.
Pay attention because something crucial could be said while you're talking.  And take GREAT notes - those are a must come homework time. 
You have to be able to figure things out on your own - don't expect Mrs. Hedgepeth to work problems for you.  Understand mathematical terms, because that's the language she uses.
Don't fall behind in this class - it is amost impossible to play "catch up".  She expects you to be responsible enough to let her know if you need help.
I never really had to study before in a math class.  In this class, if I don't study then I fail and it seems like I forget everything.
Don't expect to be "head of the class".  Everyone in advanced math is smart so your class will move along fast - don't get behind!
You have to be organized and responsible because Mrs. Hedgepeth won't come chasing after you for something that needs to be turned in.  If she gives you something Monday and tells you it's due Friday, she won't ask for it from you Friday.  YOU have to be responsible enough to turn it in.
Always ask questions if you don't understand.  That's the key thing because if you don't ask questions, Mrs. Hedgepeth will assume that you know it.
The main difference to me from 6th grade was the amount of responsibility.  Last year the teacher would come looking for you if you didn't turn something in.  In advanced math, YOU are responsible for turning it in on time.  If you didn't you got a zero or had points deducted for lateness.
Don't fall asleep or "zone out".  When you wake up you're not going to have a clue what's going on and homework will be a pain because you'll have to teach yourself.  And don't think you're too smart to study - you CAN fail tests in this class!
In 6th grade, most things were a review from the year before.  In advanced math, most everything is new.  This means you MUST pay attention and take down ALL the notes in class (even if you think you don't need them!).
Before the school year starts, review all the basic math material.  You will need to remember this to do the difficult material even in the first chapter.
Have a separate binder for the class.  Don't be scared when you first walk in - give the teacher and the class a chance.  You might really like it!
In 6th grade I could ignore the teacher, not study, have a messy binder and still make have a 101 average.  Now I study, am organized, and take good notes.  I still make good grades, but I have to work very hard at it.
This can be the BEST class you've ever had or the WORST class you've ever had.  But it is TOTALLY up to you.  If you come in with the attitude that you're too good or smart to study, you'll never make it.  That was my attitude and I made C's and D's until I realized that.  This math is unlike ANYTHING I'd ever seen and I kept thinking that it would just "come to me".  That didn't happen.  I had to really work hard.  In 6th grade I had A's in math.  Now I have B's, but I'm VERY proud of those B's because I know how hard I worked to get them.
You HAVE to pay attention.  And do NOT ask questions that Mrs. Hedgepeth has already answered too many times. 
Take it from me - do NOT try to convince yourself that it's Mrs. Hedgepeth's fault if you don't do well.   If you don't understand, tell her THAT DAY.   I got lazy on a chapter 2nd 9-weeks and tried to get her to explain everything to me the morning of the test (which I totally bombed).   She always offers to come early, stay late, tutor at break AND through the message board.  And she will ask YOU why you didn't take advantage of all these and there's really no excuse you can give. If you aren't giving 100%, your test grades will show it.  I realized I couldn't blame her for something that was my fault (and MAN did I get in trouble).