1.	Solve the equation a = (-5) + 13.
		A.	-8	B.	18
		C.	8	D.	-18
		Hint
	2.	A number is divisible by 6 if ______.
		A.	the ones digit is divisible by 2, and the tens digit is divisible by 3
		B.	the number is divisible by 2 and 3
		C.	the sum of the digits is divisible by 6
		D.	the last two digits are divisible by 2 and 3
		Hint
	3.	Write the expression 4 · 4 · 4 · 4 · 4 using exponents.
		A.	45	B.	44
		C.	54	D.	55
		Hint
	4.	Find y for y = x2 - 15 if x = 6.
		A.	51	B.	21
		C.	-3	D.	49
		Hint
	5.	Find the greatest common factor of 64ab3c2 and 48a2b2c.
		A.	8ab3c	B.	8a2b2c2
		C.	16ab2c	D.	16abc
		Hint
	6.	Write in simple form.
		A.		B.
		C.		D.
		Hint
	7.	Simplify
		A.		B.	2ab2
		C.		D.
		Hint
	8.	Express 7-3 using positive exponents.
		A.	(-7)3	B.
		C.		D.
		Hint
	9.	Write 3,458,000 in scientific notation.
		A.	3458 × 103	B.	3.458 × 106
		C.	0.3458 × 106	D.	3.458 × 103
		Hint
	10.	The number 250 is divisible by which number(s) from the following list? 2, 3, 5, 6, or 10
		A.	2, 3, and 6 only	B.	5 and 10 only
		C.	All of 2, 3, 5, 6, and 10	D.	2, 5, and 10 only
		Hint
	11.	Write the prime factorization of 756.
		A.	2 · 35 · 7	B.	22 · 3 · 63
		C.	22 · 33 · 7	D.	23 · 33 · 7
		Hint
	12.	Factor 7x + 21.
		A.	7x(1 + 21)	B.	x(7 + 21)
		C.	7(x + 3)	D.	7(x + 21)
		Hint
	13.	Simplify
		A.		B.
		C.		D.	Already simplified
		Hint
	14.	Find (14b5)(-1b6).
		A.	-14b30	B.	14b11
		C.	-14b11	D.	14b30
		Hint
	15.	Write the expression 5-4 using a positive exponent.
		A.	-54	B.	54
		C.		D.
		Hint
	16.	Express 3.456 × 10-4 in standard form.
		A.	34,560	B.	0.0003456
		C.	0.3456	D.	0.003456
		Hint