PLEASE ANSWER

A violin string is stopped so that the resulting string length makes a desired musical note. In order to make the next higher note,T the string must be shortened using a factor of 2132, or about 0.944. That is, the current length is multiplied by 0.944. The length of an unstopped string is 32 centimeters. (a) Find a fon'nula for an exponential function that gives the length L, in centimeters, of a string that is stopped to make a tone :1 notes higher than the unstopped string. L(n) = (b) One of the unstopped strings makes an A note. To what length (in centimeters) must the string be stopped in order to make (21*, which is 4 notes higher? (Round your answer to two decimal places.) cm