Answer:
increase
Step-by-step explanation:
That is a ratio. 7 x 3 = 21 and 13 x 3 = 39.
Answer:
The inverse of
is 
Step-by-step explanation:
Given equation :

Replace x with y and y with x
So, 
So, Option C is correct
Hence The inverse of
is 
An non-example of a independent variable is how much money you make selling cookies , because it depends on the number of cookies you sell .