1.	If and , find the approximate value of log2 15.
		A.	3.9069	B.	1.4649
		C.	3.6802	D.	0.7369
		Hint
	2.	Solve log4 3 + log4 x = log4 18.
		A.	54	B.	6
		C.	12	D.	15
		Hint
	3.	Solve log3 (x + 4) - log3 (x - 2) = 2 log3 2.
		A.	8	B.	9
		C.	4	D.	6
		Hint
	4.	Solve log5 ( x + 2) + log5 ( 2x - 1) = 2.
		A.	3	B.	no solution
		C.		D.	, 3
		Hint
	5.	Given that log710 1.18, find log7 1000.
		A.	3.85	B.	2.54
		C.	3.54	D.	1.64
		Hint