The most used one would be a tree diagram
Answer:

Step-by-step explanation:
Because we are looking for the scale factor of the model to the bridge (model first), the scale factor will be less than one.



Each fraction (
) can be simplified to
. Therefore, the scale factor of the model to the bridge is
.
Answer:
2 over 100 and 20 over 100
Step-by-step explanation:
