Tolong dijawab nomor 21 & 22

21. 1,2m³=1200 dm²=1200 liter
140+300=440 liter
1200-440= 760 liter (C)

22. 5000m= 5 km
1 jam= 60 menit
60/20 x 5 = 15 km/jam (B)

semoga membantu ^___^