#### Answer

$(25,2)$

#### Work Step by Step

We are given that $f(x)=log_{5}x$ and that $g(x)=5^{x}$ is the inverse of $f(x)$. We are also told that the ordered pair (2,25) is a solution of the function $g(x)$.
As seen in Section 9.2, when the ordered pair $(x_{1},y_{1})$, is a solution to a function, that function's inverse will have a solution of $(y_{1},x_{1})$
Therefore, the ordered pair $(25,2)$ will be a solution of $f(x)$.