1.	Which equation represents exponential decay?
		A.	y = 0.86(1.46)x	B.	y = 1.7(1.06)x
		C.	y = 2.62(1.22)x	D.	y = 1.05(0.95)x
		Hint
	2.	Twyla puts $1000 in a savings account that pays 4% interest, compounded monthly. How much money will be in the account 3 years later if she makes no more deposits?
		A.	$1010.03	B.	$1120.00
		C.	$1127.27	D.	$1124.86
		Hint
	3.	Lance is planning to invest $5000 for a period of 3 years. He has a choice of four different investments. Which of the combinations of interest rates and compounding below will earn the most money?
		A.	7.125%, quarterly	B.	7.1%, monthly
		C.	7%, daily	D.	7.2%, annually
		Hint
	4.	Suppose Tyler sprayed around the house for ants. Which formula would be used to find the number of ants still alive after a certain time if the number of ants was changing exponentially?
		A.	compound interest	B.	cannot be determined from given information
		C.	exponential decay	D.	exponential growth
		Hint
	5.	Suppose inflation of money is at a rate of 3% per year in the United States. How much will a $1 candy bar cost in 30 years?
		A.	$2.43	B.	$1.90
		C.	$4.32	D.	$0.40
		Hint