Please Help:
According to Newton's Law of Cooling, if a body with temperature

is placed in surroundings with temperature

, different from that of

, the body will either cool or warm to temperature

after t minutes, where:

and

is a constant.
If a cup of coffee with temperature 140°F is placed in a freezer with temperature 0°F. The constant k ≅ -0.0815. Use Newton's Law of Cooling to find the coffee's temperature, to the nearest degree Fahrenheit, after 15 minutes.