Chapter 2 - Real Numbers - 2.5 - Translating from English to Algebra - Problem Set 2.5 - Page 81: 33

$xy-7$

The product of "$x$ and $y$" tells us that we need to multiply $x$ and $y$, giving us $xy$. We are also told that $7$ is subtracted from this product, which leaves us with $xy$ minus $7$, which can be expressed algebraically as $xy-7$