In the expression 15(4+3), what operation links the numbers?

In the expression 15(4+3), the operation linking the numbers involves the multiplication of 15 by the sum of the numbers within the parentheses. The parentheses indicate that you should first evaluate the expression inside them, which is 4 + 3. After determining that this sum equals 7, the expression simplifies to 15 multiplied by 7. Thus, the entire operation performed here is multiplication, where 15 is being multiplied by the result of adding 4 and 3 together. This foundational concept of operations in expressions highlights the importance of understanding the order of operations and how different mathematical symbols and structures interact within a given expression.