Please help me on this

Answer:
1/400
Step-by-step explanation:
It is helpful to know that 1 m = 100 cm, so 8 m = 800 cm.
The scale factor is usually written as ...
(model distance) / (world distance)
= (2 cm) / (800 cm) = 2/800 = 1/400
Emily's drawing has a scale factor of 1/400.