Is the comma used correctly?
3. august 31, 2009
4. salina kansas, 76532 !

On #3, yes, it is used correctly.

On #4, it would be Salina, Kansas 76532. Because it is referencing a city in a state. Just like how you would say Phoenix, Arizona or Los Angeles, California.

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.

you do this because a real teammate puts the team first