What is this? -8 + ( -1 )

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Given the graphed function below which of the following orders pairs are found on the inverse function

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.