A pot roast is removed from the oven when it has reached an internal temperature of 165 degrees Fahrenheit. At time equals 20 minutes, the meat thermometer shows that the temperature has cooled to 155 degrees Fahrenheit. The temperature of the room is 70 degrees Fahrenheit. Assuming that Newton's Law of Heating and Cooling holds, at what time with the internal temperature of the pot roast be 130 degrees Fahrenheit?

84.325 minutes

124.638 minutes

82.631 minutes

45.768 minutes