You are hosting a dinner party tonight and you forgot to put the soda bottle into the refrigerator. So, you take a bottle of soda at room temperature, which is 70°F, and you put it in the refrigerator to cool, hoping that it will be cold by the time your guests arrive. If the temperature in the refrigerator is 40°F and k = 0.4, what will the temperature be in 1 hour? 2 hours? 3 hours?