Tolong jawabkan no 2,4,5

1.skala=4/60000cm=1/15000cm
2.skala=5/2:1200000=1/480000
3.js=8.450=3600m
4.js=12.250000=3000000cm=30km
5.js=3,2.7500000=24000000cm=240km
semoga membantu :)