Grace Allen flew from New York to London, which is 5 time zones to the east of New York. She left New York at 7:20 A. M. and arrived inLondon at 8:10 P. M.
She took a bus from London to Edinburgh, Scotland, which is in the same time zone.
She left London at 10:30A. M. and arrived in Edinburgh at 5:14 P. M.

Find the travel times (A) by plane and (B) by bus.

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.