Answer:
$19.8
Step-by-step explanation:
To find the answer, find the ratio.
The answer is X-2 ........

This cannot be factored because you can'y take a number out.
This is factoring. 
This is not factoring. 
Hope this helps. :)
To find out the cyclist's average speed you simply have to divide 50.0km
by 2.5 to find the answer. Therefore the cyclist's average speed is
20.0 km an hour.