Hold down shift and press the letter - you just did it in your question!
In "Yours truly," you capitalize the first letter of each word if you are using it as a complimentary close in a letter, as it is a formal sign-off.
Only if it is the first word in a sentence.
yes
title
You would capitalize Baltimore by making the first letter of the word uppercase - "Baltimore."
In APA style, capitalize the first letter of the first word of the title, as well as the first letter of any proper nouns in the title. For journal articles, capitalize the first letter of the first word of the title, the first letter of the first word of the subtitle (if present), and any proper nouns in the title. All other words in the title should be in lowercase.
polish
Initial Caps are when you capitalize the first letter of each word.
In "Sincerely yours," you should capitalize only the first letter of each word (Sincerely Yours).
You should capitalize the first letter of the sentence "Who is your favorite French artist?"
Capitalize only the first letter of each of their names.eg. David Hume, Thomas Hobbes
Capitalize only the first letter of the first word of your phrases of salutation and conclusion. i.e. My dear Josephine, Very truly yours,