Assuming the teacher means zero Fahrenheit, the same temperature is minus 17.7 degrees Celsius. If the zero is Celsius, changing it to Fahrenheit gives you 32 degrees. But, the teacher said it's going to be twice as cold, and that is something completely different and more complicated.
Beethoven is considered the transitional figure between Classical composers Haydn and Mozart on the one hand, and the Romantics on the other. His innovations included his construction of his Sixth Symphony (The Pastoral) as program music and his expansion of the quartet, concerto, sonata, and symphony forms.
Beethoven is a Saint Bernard. There are long-haired St. Bernards and short-haired St. Bernards. They are most famous for their rescue skills. They are trained to carry a barrel on a collar with liquid, and search out lost people and then give the liquid to the people they rescue in the Alps and other mountainous areas. A Saint Bernard.