I believe the answer would be Bill Gates. An appositive is a noun that renames a noun right beside it. In this case, "Bill Gates" is renaming "One of the richest men in the world."
Excellent.
Things to fix (mostly syntax):
- Cool right. -> Cool, right? (as a question)
C. A teacher claims that student performance has gone down based on school - wide test results
I think it’s 1
Sorry if wrong