Ruby flipped the coin and spun the spinner below. What is the probability that the coin will land on heads AND the spinner will land on either a 2 or a 3?
A. 1/2
B 1/4
C. 1/10
D. 1/3

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.