Asurvey was sent out to 650 people. in total 3/5 of people returned the survey. how many people returned the survey

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?