I can’t recall the specific name. It’s when you are only friendly on superficial terms. Like when you say “What’s up?” Or “Hiw are you?” It’s polite. Just acknowledging the other person’s existence.
The answer is 18 hope this helps .
D. Pullman car was a train car. Standard time was used by railroads so trains would not crash into each other. Standard gauge was the size of
Tracks so any railroad could use it.
