Jawab guys pake cara yaa sekalian dijawab pliss bantuu ya kakak

6. 50m/detik * 3600=180000(180km/jam
7. 0.5km/menit * 60 =30(30km/jam)
8. 40cm/detik * 60 = 2400(24m/menit)
9. 50mm/detik * 60 = 3000(3m/jam)
10. 2cm/detik * 3600 = 7200(7.2km/jam)