What is the first quartile of the set of data shown below?

16, 23, 24, 39, 45, 78, 95

a. 45

b. 23

c. 24

d. 39

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?