please help with these three questions1) The sound intensity levels for a machine shop and a quieter working area are 100 dB and 42 dB, respectively. How many times greater is the intensity of thesound in the machine shop than that in the library?2) What would be the intensity level of a 54-decibel sound after being amplified a million times?3) A dB meter registers 129 dB when placed 2.2 m in front of a loudspeaker. Assuming uniform spherical spreading of the sound, what is the power output of thespeaker?

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Answered: please help with these three questions…

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The sound level measured in a room by a person watching a movie on a home theater system varies from 45 dB during a quiet part to 65 dB during a loud part. Approximately how many times louder is the latter sound?