The number of decibels, d, produced by an audio source can be modeled by the equation d = 10 log(5)
where I is the sound intensity of the audio source and
K is a constant. How many decibels are produced by an
audio source whose sound intensity is 1,000 times the
value of K?
4.
F.
G. 30
H. 40
J. 100
K. 10.000

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?