In a High School a survey was taken of 130
students to find out which sports they liked. The survey showed all the students who liked wrestling also liked football. Of those who like wrestling
13
also liked baseball. There were
44
students who liked basketball, of those
26
liked football. None of the students who liked basketball liked wrestling or baseball. There were
82
students who liked football and
26
of them only liked football. There were
51
students who liked baseball and
30
of them only liked baseball.

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.