EVERYBODY HELPS ME

HELLO!I need HELP!!!!
I have a question about math past paper(c1,6663/01,10 WED JAN 2007)
question9,part C
I can`t show it ...I don`t know how to work out this question...

IF anybody has mark scheme`s answer or knows how to do it ,please show me in comments

THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I need some help....chris

I have balloondebate，why should I survive？？I·m a cook.....could you give me some ideas.......thanks

FOR CHRIS!

thank you for you business exam book!It`s really helpful!

and I`d like to retake the exam which we did today!COULD YOU ASSESS IT ???or give me a new textpaper!Thank you so much!

MR chris!HELP!

DO YOU THINK I CAN TAKE THE BUSINESS EXAM IN JAN???IS IT DIFFICULT?????
I REALLY WANT TO KNOW?
IF I ENTRY THE EXAM,WHAT GRADES DO YOU THINK I COULD GET????IS IT POSSIBLE TO GET B????????????????????????
AND IF I DON`T JOIN THE EXAM THIS IN JAN,IS IT BAD FOR ME?
thank you！！！！！！！！！！