10. Lin says that a solution to the equation 2x – 6 = 7x must also be a solution to the equation 5x – 6 = 10x.

Write a convincing explanation about why this is true.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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.

How many ordered pairs of positive integers satisfy xy=32?