1. (b) How long will it take for the temperature of the roast to fall to 21°F?

2. The day before we had bought some cans of soda, but we didn't have enough
room in our refrigerator to cool the colas. Since it was February my wife
suggested that we leave the cans outside overnight to cool.
The overnight temperature was to be in the twenties, so I was afraid they
and then brought one of the cans inside to have a drink. Before I drank the
Assume that the outdoor temperature remains constant during the cooling

3. don't want to burn your tongue, so you decide to wait.
chocolate is about 200°F degrees, because you added water that was