Please help!!
For each of the following find the value of x correct to two decimal
places.

The sum of two numbers is 86, and their difference is 20. find the two numbers

Add the fractions and simplify 1/2+ 1/3

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.