Answer:
A. Distributive
The expression 5(6 + 9) involves the distributive property. The distributive property states that when you multiply a number by a sum (or distribute it over the sum), you can multiply the number by each term inside the parentheses and then add the results. In this case, you would distribute the 5 to both 6 and 9:
\[5(6 + 9) = 5 \times 6 + 5 \times 9\]
This simplifies to:
\[30 + 45\]
And then, adding:
\[75\]
So, the distributive property is used in this expression to simplify it.
Step-by-step explanation:
