Answer:
Step-by-step explanation:
3,000,000 cm = 30,000 m = 30 km.
There are 100 cm in a meter and 1000 m in a km,
Answer:
3000 000cm= 30000m= 30km
Step-by-step explanation:
100cm = 1m
divide it by hundred
3000000 = 30000m
divide it by thousand
1000m = 1km
300 00m = 30km
