Tolong bantu ya kakak-kakak

21.0,4 ltr+2.000ml-1,3ltr=400ml+2.000ml-1300ml=2.400ml-1.300ml=1.100ml/B

22.diket=k=42km/jam
w=11.35-09.15=02.20=2 1/3jam=7/3 jam
ditan=j
jwb=j=k×w=42km/jam×7/3 jam=98 km/c
maaf kalau slah...smoga mmbantu dn brmanfaat