Caleb got $60 for his birthday and put it in his savings account. After he deposited the money, he has $139. How much money was in Caleb's account before the deposited the money? Part A: Write an equation to represent the problem.

Part B: Solve to find the solution. Show your work and/or explain your reasoning.

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.