1.	If and , find the approximate value of log2 15.
		A.	0.7369	B.	1.4649
		C.	3.6802	D.	3.9069
		Hint
	2.	Solve log4 3 + log4 x = log4 18.
		A.	15	B.	12
		C.	6	D.	54
		Hint
	3.	Solve log3 (x + 4) - log3 (x - 2) = 2 log3 2.
		A.	6	B.	8
		C.	9	D.	4
		Hint
	4.	Use log 3 4 1.26 to approximate the value of log 3 108.
		A.	36	B.	3.78
		C.	4.26	D.	2.38
		Hint
	5.	Use the fact that log 5 8 1.29 and log 5 10 1.43 to approximate the value of log 5 80.
		A.	1.11	B.	1.84
		C.	16	D.	2.72
		Hint