Peter can ride his bike for 60 miles in 1 hour less time than it takes Shauna to ride her bike the same 60 miles. Peter's rate is 3 miles per hour faster than Shauna's rate. Find Shauna's rate.

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.