Three times the sum of a number and four is equal to five times
the number, decreased by two. if x represents the number, which
equation is a correct translation of the statement?
(1) 3(x + 4) = 5x - 2 (3) 3x + 4 = 5x - 2
(2) 3(x + 4) = 5(x - 2) (4) 3x + 4 = 5(x - 2)

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.