Help! Will give 30 pts

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

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.