Which statements are true about each person’s work? Check all that apply

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What integer is equivalent to 9 3/2

1.multiply and simplify if possible. √7x (√x − 7√7) 2. what is the simplest form of the radical expression? 33√2a−63√2a