Answer:
F is the abbreviation for Fahrenheit
A proper noun is the name of a person, place, thing, or a title; proper nouns for city and business are the names of cities or businesses or the words city and business used in a name or title.
A city:
Oklahoma City, OK
Milan, Italy
A business:
Council of Better Business Bureaus, Arlington, VA
BFM 89.9 The Business Solution, Malaysia
Explanation:
