review of math test

HELLO
i've passed two days of my midtest .
today was math nd history . the materials of math are integral and linear program .
based on formative test , i think i got very very bad mark (my teacher hasn't announced the result yet ). it was about integral .
how about today ?
actually , in my opinion it's not as hard as formative test . and how lucky i'm ! saya dikelilingi orang-orang pintar :
haris , fajar ganteng , fajar keriting , ilham . ohh , terimakasih ya allah =)

well , the questionts consist of 30 multiple choices nd 5 essays .
essaynya lumayan bikin saya keringetan dengan hitungan2 yang bener-bener menghabiskan kertas coret2an saya .
*fyi , pengawas di ruangan saya tidak mengizinkan membawa kalkulator & alfalink ! opadahal oh padahal di ruangan lain diizinkan make kalkulator . NGGAK ADIL AH PAK ! =(
ini nih , essaynya :

31. find the minimum value P=20x+20y of linear inequality system
4x+y>=8
2x+3y>=12
4x+3y>=24
x>=0
y>=0

32.A 1940 m2 parking area can accomodate 160 cars nd buses . each car needs 4m2 and each bus needs 25 m2 . the parking ticket cost Rp 5000 for each car nd Rp 10000 for each bus. When the parking area is full , find max profit obtained by parking administer .

33 . integral
34. The tangen line a curve at the point (2,1) perpendicular x+2y-3=0 and each point (x,y) is A''=3-6x . find equation of curve .

35. The region enclosed by curve t=3x-x2 and line y=x from x=0 to x=3 .
a . sketch curve
b . Find the area

notes :
all questions (multiple choices+essays) were written in english .
ooh , kejam =(
anyway , doakan saya ya semoga nilai saya tuntas .
doain saya juga buad midtest yg masi 5 hari lg .
mucho thanks
;)


i know you love me ,
xoxo



*I