Which expression can be reduced? $$ \ln \left(e^{5}\right) $$ $$ \log _{5} 5^{3} $$ $$ 7^{\log _{7}} $$ All of the selections

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To determine which expression can be reduced, we need to simplify each expression using the properties of logarithms and exponents.

1. $$ \ln \left(e^{5}\right) $$
   - The natural logarithm of $$ e^{5} $$ can be simplified using the property $$ \ln(e^{x}) = x $$.
   - Therefore, $$ \ln \left(e^{5}\right) = 5 $$.

2. $$ \log _{5} 5^{3} $$
   - The logarithm base 5 of $$ 5^{3} $$ can be simplified using the property $$ \log_{a}a^{x} = x $$.
   - Therefore, $$ \log _{5} 5^{3} = 3 $$.

3. $$ 7^{\log _{7}} $$
   - The expression $$ 7^{\log _{7}} $$ can be simplified using the property $$ a^{\log_{a}x} = x $$.
   - Therefore, $$ 7^{\log _{7}} = 7 $$.

Based on the simplifications, all three expressions can be reduced to a single value. Therefore, the answer is "All of the selections."
All of the selections can be reduced.

Which expression can be reduced?

All of the selections

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Which expression can be reduced? All of the selections