1.	Express 45,280,000 in scientific notation.
		A.	4.528 × 10-7	B.	45.28 × 106
		C.	4.528 × 107	D.	4.528 × 106
		Hint
	2.	Simplify (4r - s) - (r + 2s) + (3r - s).
		A.	6r - 4s	B.	3r - 2s
		C.	8r	D.	6r - 3s
		Hint
	3.	Use synthetic division to find (4x3 + 13x2 - 2x -15) ÷ (x + 3).
		A.	4x - 5	B.	4x2 + x - 5
		C.	x2 + x - 5	D.	4x2 + x + 5
		Hint
	4.	Write the fourth root of 625.
		A.	5	B.
		C.	6254	D.	4(625)
		Hint
	5.	Simplify
		A.		B.
		C.		D.
		Hint
	6.	Simplify
		A.		B.
		C.		D.
		Hint
	7.	Simplify
		A.		B.
		C.		D.
		Hint
	8.	Simplify -8i · 6i.
		A.	48-1	B.	-48
		C.	48	D.
		Hint
	9.	Find the product of -15i and its conjugate.
		A.	225i	B.	225
		C.	15i	D.	-225
		Hint
	10.	Express the result in scientific notation.
		A.	1.25 × 10-4	B.	1.25 × 1010
		C.	1.25 × 104	D.	1.25 × 10-10
		Hint
	11.	Simplify (7x2 + 2x – 3) – (2x2 – 11x + 4)
		A.		B.	5x2 + 13x – 7
		C.		D.
		Hint
	12.
		A.	5	B.	4
		C.	–5	D.	1
		Hint
	13.	Factor 3ty3 – 48ty.
		A.		B.
		C.	3ty(y + 4)(y – 4)	D.
		Hint
	14.	What is the GCF of
		A.	p2	B.	np
		C.	3n	D.	n
		Hint
	15.
		A.		B.	72
		C.	36	D.	6
		Hint
	16.	Is the following expression simplified?
		A.	no, since the index of 4 could be smaller
		B.	yes, since the power on x is < 1 in the numerator
		C.	no, since there is a radical in the denominator
		D.	Yes, since the power on x is = 1 in the denominator.
		Hint
	17.	Solve
		A.	no real solution.	B.	36
		C.		D.	18
		Hint
	18.	Solve
		A.		B.	x > 0
		C.		D.
		Hint