An account earning 6.5% interest compounded annually for 10 years would have a balance of how much if the principal was $500? how do i set this up

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

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.

Percent increase and decrease. original number: 45 new number: 18