1. Let a = ln 2, b = ln 3 and c = ln 5. Use the identities for logarithms to express the following quantities in terms of a, b and c.

(a)	ln 6 =
(b)	ln (1/5) =
(c)	ln (2/3) =
(d)	ln 256 =
(e)	ln 0.3 =
(f)	ln 0.02 =
(g)	ln (9/e) =

2. Complete the following equations by filling in the missing quantity.

(a)	loga3 + loga4 = loga
(b)	loga3 - loga4 = loga
(c)	2 logax + logay = loga
(d)	2 ln x + 4 ln y - ln z = ln
(e)	xlog 2 - log(2x2) = log

2. Solve the following equations for the indicated variable.

(a)	4 = 2x	x =
(b)	9 = 3-x	x =
(c)	2-m = 2.2m .4m	m =
(d)	100 = 50e3t	t =