aida bought 50 pounds of fruit consisting of oranges and grapefruit. She paid twice as much per pound for the grapefruit as she did for the oranges. if aida bought $12 worth of oranges and $16 worth of grapefruit, then how many pounds of grapefruit did she buy?

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.