"A setting" is a noun. It refers to a place.
Without the word "a" in front, it becomes a verb, or action word, e.g. "I was setting the table for Chrostmas dinner when I heard a knock at the door."
as a set {}
A fraction.
Circle Graph!
Fraction
past
Flumpy is part of the set called the Fluffies, along with Dipsy, Honey and IGGY.
mass
Industrial Operations set
Part of it in Central Park and then the other is a set
What did Americans call the part of America where they set up their first colony?
a whole number
Yes. A null set is always a subset of any set. Also, any set is a subset of the [relevant] universal set.