Tanya is training a turtle for a turtle race. for every of an hour that the turtle is crawling, he can travel of a mile. at what unit rate is the turtle crawling?

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels