The equation would be : 10y + 3x = 50
Hope this helps :)
Answer:

Step-by-step explanation:
Steps to find the inverse function:
1) replace f(x) with "y"

2) solve for x:

3) replace "x" with
, and y with x:

Answer:
Don't know first cause I can't really see it but the second one is two times bigger
First we must know the equation

So

And that would be
cubic inchesor B.Hope I helped!