1.	Use the following table to find the population of bacteria in hour n.
		A.	30,0006n
		B.	180,000n
		C.	30,000 × 66
		D.	6 × 30,000 n
		Hint
	2.	The population of fish in Mark's lake is 500 this year. If the population increases by 6.9% a year, what number can Mark multiply this year's population by to estimate the fish population in the lake next year?
		A.	1.69	B.	6.9
		C.	1.069	D.	0.0931
		Hint
	3.	Identify the decay factor in the equation p = 1,508,069 × 0.89n where p is the bacteria population and n is the number of days after a vaccine was administered.
		A.	p	B.	0.89
		C.	n	D.	1,508,069
		Hint
	4.	Which curve represents exponential decay?
		A.	curve b	B.	curve a
		C.	curve c	D.	curve d
		Hint
	5.	Which equation represents exponential decay?
		A.	y = 63 × 4x	B.	y = 63 × 4.4x
		C.	y = 63 × 0.4x	D.	y = · 63x
		Hint