Harrison has 50 CDs in his music collection. If 30% of the cities our country music and 50% are Pop music how many CDs are other types of music?

With: label the vertices and all the elements needed. find x

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?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?