# Chapter 7 - Exponents and Exponential Functions - 7-4 More Multiplication Properties of Exponents - Practice and Problem-Solving Exercises: 28

$1$

#### Work Step by Step

We start with the given expression: $(xy)^0$ The zero as an exponent rule states that for every nonzero number $a$, $a^0=1$. Therefore, since $xy$ is a nonzero number, this expression simplifies to $1$.

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