1.
If a $5000 piece of equipment looses value at a rate of 5% per year, how much will it be worth after 5 years?
A.
$3868.90
B.
$4279.35
C.
$4011.62
D.
$6381.41
Hint
2.
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.
$236.74
C.
$505.36
D.
$270.92
Hint
3.
Each year, new computers are built with better technology, making older ones less valuable. If the computers looses value at a rate of 20% per year, how much will a $1500 computer be worth in ten years?
A.
$161.06
B.
$1,200
C.
near $0
D.
$9,287.60
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.
exponential decay
B.
compound interest
C.
cannot be determined from given information
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.
$1.90
B.
$0.40
C.
$4.32
D.
$2.43
Hint