tolong jawa 30-33 dg benar yg jawab saya doain masuk surga

30) ipa=30% × 40=30/100 × 40 =12
      mtk=45% × 40=45/100 × 40=18
ipa+mtk=12+18=30
31)BI=25%×40=25/100 × 40=10
mtk+bi=18+10=28
 maaf cuman bisa segitu
smg membantu..

30)mtk=45/100X40=18
ipa=30/100X40=12
=18+12=30

31)mtk=45/100X40=18
b I =25/100X40=10
=18-10=8

32)

33)kenanga=40/25X90=144
dahlia=15/25X40=54
=144+54=198

smga membantu ;*