How do I subtract a fraction and a whole number? Please explains step by step to get marked as brainliest

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Astudent simplified a rational expression as shown.

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?