kakak tolong bantu jawab yah pakai cara besok dikumpulin

6. K= J/w
      =180÷9/2
      =180 ×2/9
      =40 km/jam

7. w=J/k
      = 420/70     
      = 6 jam    +     09.00   = 15.00

8. 24 cm²/detik = 144 cm²/jam
    V= W × D
      = 40 jam × 144 cm²/jam
      = 5760 liter

9.125 ml/detik = 450 liter/jam
    V= W×D
      = 1 jam × 450 l /jam
10.84 dal = 840 liter
     W=V/D
        =840/12
        =70 menit = 4200 jam
      =450 liter ÷ 5
      = 90 liter