Final answer:
In a personal-business letter, the sender's address is placed immediately above the dateline, which varies in format by the recipient's country, followed by the recipient's information or inside address.
Step-by-step explanation:
Immediately above the dateline in a personal-business letter, you would include the sender's address. The sender's address consists of your name, street address, city, state, and zip code, and is followed by a blank line. After that, the date is placed, with the correct format depending on the recipient's country. For the United States, it would be "January 1, 2010", while for Europe, it would be "1 January 2010". Do not abbreviate the month. Once the dateline is set, you should leave a blank line after the date before moving on to the recipient's information or inside address, which includes their name, title, company name (if applicable), street address, city, state, and zip code, with the country in capital letters when writing to someone internationally.
The subject line should come next if included in the letter, summarizing the main point of the correspondence. Below the subject line, the salutation begins with "Dear" followed by the recipient's title and last name. This is followed by a colon and a blank line before starting the body of the letter.