Yes. Just like German, French, English, Spanish, Norwegian, Dutch, Australian, European, Asian, and any other adjectives derived from the name of a country or continent, the words "American" and "African" should be capitalized. They should be capitalized whether you use them together or separately.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
Yes it should be capitalized.
The first 'c' should be capitalized.
Yes it should always be capitalized.
The term "negro" should not be capitalized unless it is the first word of a sentence or part of a proper noun. In general usage, lowercase is appropriate. However, it is important to note that the term "negro" is considered outdated and offensive by many people, and the preferred term is "Black" with a capital B when referring to the racial or ethnic group.
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
It should only be capitalized if it forms part of a title.
As an abbreviation it should be capitalized.
Yes it should be capitalized.
Yes it should always be capitalized.
Yes it should be capitalized.
No it should not be capitalized.
The first 'c' should be capitalized.
Yes, it should be capitalized.
No. It should not be capitalized.
"Western" should be capitalized and "world" should not.