1.	To what set of numbers does belong?
		A.	whole numbers	B.	irrationals
		C.	rationals	D.	integers
		Hint
	2.	Simplify
		A.		B.	72
		C.		D.
		Hint
	3.	Find
		A.	1.1	B.	1.1
		C.	11	D.	-1.1
		Hint
	4.	Simplify:
		A.	16	B.	-16
		C.	no real roots	D.
		Hint
	5.	Find the result of
		A.		B.
		C.		D.
		Hint