Answer:10
Step-by-step explanation:
Dont know how to explain on here but I know for sure its 10 :)
The answer for your problem is shown on the picture.
A:b=c:d
7.2:x=1:25. If u see two ratios equal each other, the product of a and d is equal to the product of b and c. This means that (7.2 times 25) is equal to x. This equals 180=x. The actual distance of the trail of 180 km. Hope this helps!
It does represent the function because each out put has only one input
