## Algebra 1

$5^{2}$
We start with the given expression: $(5)^{-2}\times(5)^{-4}\times(5)^{8}$ To multiply powers with the same base, we add the exponents. Therefore, $(5)^{-2}\times(5)^{-4}\times(5)^{8}=5^{-2+(-4)+8}=5^{2}$