1.	Which equation represents exponential decay?
		A.	y = 1.05(0.95)x	B.	y = 1.7(1.06)x
		C.	y = 2.62(1.22)x	D.	y = 0.86(1.46)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.	$1124.86	B.	$1120.00
		C.	$1127.27	D.	$1010.03
		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.	7.1%, monthly	B.	7.125%, quarterly
		C.	7.2%, annually	D.	7%, daily
		Hint
	4.	Nancy invests $100 in one account for ten years at a 9% interest rate compounded annually, and she invests $150 in an account for 10 years at a 6% interest rate compounded semi-annually. How much money will she have in the accounts after 10 years?
		A.	$507.65	B.	$270.92
		C.	$505.36	D.	$236.74
		Hint
	5.	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.	cannot be determined from given information	B.	exponential decay
		C.	compound interest	D.	exponential growth
		Hint