An oven was turned on at 10:32 PM. It was turned off at 1:13 AM. How long was the oven on?

Answer for 10 points show work you guys in advanced < 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.

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?