Affluent
Noun and な adjective
ふゆう
どうして人は富裕層と貧困層に分けられるのでしょうか。
Why do we separate people into the rich and the poor?
If you're rich and abundant, you are super wealthy, probably.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.