Office Depot wants to make a banner by enlarging the 6 inch by 11 inch copy paper's image. The banner dimensions need to be 30 inches by 55 inches. Represent the scale factor from the copy paper to the banner as a percent.​

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

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.

Tom drove 206 miles in 3.9 hours. estimate his average speed.