Which expression is equivalent to the following complex fraction? (2-1/y)/(3+1/y)

a. (3y+1)/(2y-1)
b. (2y-1)(3y+1)/y^2
c. y^2/(2y-1)(3y+1)
d. (2y-1)(3y+1)

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.