Final answer:
To make the expression 3(n + 4), use the distributive property to multiply 3 by both n and 4, resulting in 3n + 12.
Step-by-step explanation:
To make the expression 3(n + 4), you can use the distributive property. This property states that when a number is multiplied by a sum in parentheses, you can distribute the multiplication to each term inside the parentheses. In this case, you would multiply 3 by both n and 4. So the expression would become 3n + 12.
Learn more about Using the distributive property to simplify an expression