Question 48547
x ---| 1,2,3,4,5
f(x)-| 5,3,5,1,2
g(x)-| 4,5,1,3,2 
From the information a from the the table above, providing values for f(x) and g(x) evaluate (fog)^-1(3) 

The inverse of (f(g)x) is g^-1 [f^-1(x)]

So, g^-1 [f^-1(3)]= g^-1(2)=5

Cheers,
Stan H.
Comment: It doesn't affect the answer to this problem but shouldn't one
of the "5's" on the f(x) line be a "4".

Cheers,
Stan H.