Jezzabelle has three stacks of coins. Each stack has only one type of coin and each stack has the same amount of coins as the other stacks.
Which expression represents the amount of money Jezzabelle has,
where n is number of coins in each stack. Select ALL that apply.

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