Which of the following conversion factors would you use to change 18 meters to kilometers?

1 meter = 0.001 km

Explanation:

We know that 1 km is equivalent to 1000 meters. That is to mean that, 1000 meters make up 1 km;

1000 meters = 1 km

1 meter = ?

Therefore, 1 meter is equivalent to;

1/1000 km or 0.001 km

Therefore, the conversion factor would be;

1 meter = 0.001 km