Part a: a sporting goods store offers a 40% discount on all golf clubs. rocco spent 20% of the money in his savings account on a golf putter. he paid $48 for the putter after the discount. how much money did rocco have in his savings account after buying the putter?

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