The distance between the school and the airport on a map is 7.25 cm. The scale of the map is 1 cm : 12 m. What is the actual distance between the school and the airport?

This problem can be solved via a simple ratio and proportion approach. The concept is, the ratio of the actual length to the model length is constant. The solution is as follows:

Actual/Model = 12 m / 1 cm = x/7.25 cm

Solve for x,

x = 87 m

So, the actual distance is 87 m.