1.	A number is divisible by 6 if ______.
		A.	the sum of the digits is divisible by 6
		B.	the number is divisible by 2 and 3
		C.	the ones digit is divisible by 2, and the tens digit is divisible by 3
		D.	the last two digits are divisible by 2 and 3
		Hint
	2.	Determine which expression is not a monomial.
		A.	-14(-st)(3u)	B.	12w(xy + z)
		C.	17p(-qr)	D.	ab
		Hint
	3.	Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
		A.	55	B.	54
		C.	44	D.	45
		Hint
	4.	Find y for y = x2 - 15 if x = 6.
		A.	49	B.	21
		C.	-3	D.	51
		Hint
	5.	Find the greatest common factor of 168 and 288.
		A.	2	B.	24
		C.	48	D.	36
		Hint
	6.	What is the greatest common factor of 18mn2, 54m4, and 80n3?
		A.	9mn	B.	2mn2
		C.	18m2n3	D.	2
		Hint
	7.	Express the ratio 12gh:30h2g in simplest form.
		A.		B.
		C.		D.
		Hint
	8.	Simplify
		A.		B.
		C.		D.	2ab2
		Hint
	9.	Write the prime factorization of 756.
		A.	22 · 3 · 63	B.	23 · 33 · 7
		C.	22 · 33 · 7	D.	2 · 35 · 7
		Hint
	10.	Write the prime factorization of 500.
		A.	24 · 52	B.	23 · 52
		C.	22 · 53	D.	5 · 102
		Hint
	11.	Simplify
		A.		B.	Already simplified
		C.		D.
		Hint
	12.	Find
		A.	x8	B.	13
		C.	18	D.	x3
		Hint
	13.	Write the expression m-7 using a positive exponent.
		A.		B.
		C.	m7	D.	-m7
		Hint
	14.	Write as an expression using a negative exponent.
		A.		B.
		C.	-26	D.	2-6
		Hint
	15.	Express 35,329 in scientific notation.
		A.	3.5329 × 104	B.	35.329 × 103
		C.	3.5329 × 10-4	D.	3.5329 × 105
		Hint
	16.	Express 0.00186 in scientific notation.
		A.	1.86 × 10-5	B.	1.86 × 10-4
		C.	1.86 × 10-3	D.	1.86 × 103
		Hint