Which address or addresses should be included in a business letter?

the sender’s address only
the receiver’s address only
the sender’s and receiver’s addresses
the sender’s and receiver’s email addresses

Is the slightly humorous tone of kristof's essay inappropriate for a discussion of deliberately killing wild animals? why or why not?

In what ways do “the lamb” and “the tyger” represent opposite sides of human existence? a. “the lamb” urges passive control, while “the tyger” glorifies man’s dominance over nature. b. “the lamb” urges meek acceptance, while “the tyger” glorifies nature and power. c. “the lamb” urges childlike faith, while “the tyger” glorifies man’s experience.

In which case did the court rule that flag burning was not illegal under the first amendment? a-us v. fields b-new york times v. sullivan c-texas v. johnson d-us v. alvarez