Answer:
1) 120 m : 2 km
Ratio is always between the same quantities so either we'll convert m to km or km to m
It is better to convert km to m
=> For converting km to m, we'll multiply by 1000
=> 120 m : 2000 m
Dividing by 40
=> 30 m : 500
Now 10
=> 3 m : 50 m
2) $4.32 : $1.80
Multiplying by 100
=> $432 : $180
Dividing by 6
=> $72 : $30
Dividing by 6
=> $12 : $5
