1.	Simplify 3 + 2(xy+ 3z) + 4xy.
		A.	9xy + 15z	B.	5xy + 3z + 3
		C.	6xy + 3z + 3	D.	6xy + 6z + 3
		Hint
	2.	Simplify 12f + 6(3 + 4f).
		A.	16f + 18	B.	34f
		C.	54f	D.	36f + 18
		Hint
	3.	Evaluate 2 × 17 × 5.
		A.	190	B.	180
		C.	170	D.	160
		Hint
	4.	Write a simplified expression to represent 5 times the sum of x and 3 increased by 10.
		A.	5x + 25	B.	5x + 13
		C.	35x	D.	18x
		Hint
	5.	Simplify 2x + 5x + 4(x + 3).
		A.	11x + 12	B.	23x
		C.	11x + 3	D.	14x
		Hint