Write three equivalent ratios for each. Explain how you found each ratio. a) 4/9. b) 5/8. c) 0.3/0.12 d) 4/9 : 1 1/3

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