Gina has 500 minutes of talk time on her cellphone. She uses 30 minutes every time she makes a call. Write an equation describing the amount of minutes remaining on her phone, m, and the number of calls made, c.

Please help me ! I’m trying to finish my math assignment

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.