Who is going trick or treating today

Find the sum of the following series. round to the nearest hundredth if necessary.

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

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?