tolong jawab pakai jalan nya ,yg benar no 17 , 18 ,19

17. 3,5 m² = 3500 liter
2500 dm² = 2500 liter
7650 liter = 7650 liter
90.000 cm²= 90 liter +
——————
13.740 liter

17.)
3,5 m³ = 3,5 × 1.000 = 3.500 liter
2.500 dm³ = liter
7.650 liter
90.000 cm³ = 90.000 : 1.000 = 90 liter

==> 3.500 + 2.500 + 7.650 + 90 = 13.740 liter ( B)

18.)
v = 56 km/jam
s = 434 km

t = s/v
t = 434/56
t = 7,75 jam

19.)
d = v : t
d = 144 : 2/3
d = 144 × 3/2
d = 432/2
d = 216 liter/jam ( B)

Maaf bila ada yang salah....