For close family and friends, you can with your first name or a nickname.
<5 and <6 are not linear true pair 5 could be a linear pair
Because you sometimes have to choose between something abstract and something real. One example is when you have opportunity to make your family happy for the end of their life but you have to do something highly unetical. But the moral of the story is that we, no matter what must continue to be THE MOST ETICAL VERSION OF US. We must never doubt some ethical decisions that we've made!
It's actually "comment allez-vous". And it is french (roughly translated) for "how are you" and is generally used formally when addressing your elders.
I guess because it's technically a place?? I guess.