Xian and his cousin kai both collect stamps. xian has 56 stamps, and kai has 80 stamps. the boys recently joined different stamp-collecting clubs. xian's club will send him 12 new stamps per month. kai's cllub will send him 8 new stamps per month. after how many months will xian and kai have the same number of stamps? how many stamps will each have?

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.