Tolong jawab ya buat besok :D tolong pake rumus sd aja kakak makasih

20 ) v0 = 36.000 cm3 = 36 liter
v2 =72000 cm3 = 72 liter
dipakai = 25 liter
36 liter x 2 - 25 liter =72 liter - 25 liter = 47 liter

21) 3/4 ha = 3/4 x 10.000 = 7500 m2
15 dam2 = 15 x 100 = 1500 m2
25 are = 25 x 100 = 2500 m2
125 m2 = 125 x 1 = 125 m2
7500 m2 + 1500 m2 + 2500 m2 + 125 m2
= 11.625 m2

22) waktu = 09.30 - 09.00 = 30 menit = 1/2 jam
jarak = 20 km/jam x 1/2 jam = 10 km