The table below shows the amount of money it costs sarah to perform her craft demonstration based on how much material
is required for each attendee.
number of people attending
cost
..
$15
$18
$20
$25
.
10
15
sarah spends a total of $60. based on the information in the table, how many people attended the craft demonstration?
o
o
20
30
50
70
o
what's the answer?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.