Find the percent of change from 2008 to 2012. round to the nearest tenth of a percent. is it an increase or decrease?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

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.