Expand 5 ( y + 2 ) using the distributive property.

To expand \( 5(y + 2) \) using the distributive property, you multiply 5 by both terms inside the parentheses:

\[ 5(y + 2) = 5 \cdot y + 5 \cdot 2 \]

This simplifies to:

\[ 5y + 10 \]

So the correct expansion is \( 5y + 10 \).