1. Adam and Karla are standing by a silo. Karla heads due north of the silo and Adam heads 28 degrees west of north. When they stop, Adam is 72 yards away from the silo and 86 yards from Karla. How far is Karla from the silo?​

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