1.	In the expression 23, 2 is called the _____.
		A.	exponent	B.	base
		C.	square root	D.	perfect square
		Hint
	2.	In the expression 25, 5 is called the _____.
		A.	square root	B.	exponent
		C.	perfect square	D.	base
		Hint
	3.	The expression 3 · 3 · 3 · 3 can be written using exponents as _____.
		A.	43	B.	3(4)
		C.	4(3)	D.	34
		Hint
	4.	Select the correct first step when using the order of operations.
		A.	Do all additions and subtractions from left to right.	B.	Do all operations within grouping symbols starting with the innermost grouping symbols.
		C.	Evaluate all powers in order from left to right.	D.	Do all multiplications and divisions from left to right.
		Hint
	5.	A fish called the Coelacanth who was thought to be extinct for 4 · 108 years was discovered alive in 1938. Write 4 · 108 years without exponents.
		A.	400 million years	B.	40 million years
		C.	4 billion years	D.	40 billion years
		Hint