you invested $5000 between two accounts paying 3% and 6% annual interest, respectively. If the total interest earned for the year was $480, how much was invested at each rate

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