- 1. Growth or decay? The population at Creekside is 500 and increasing at a rate of 1.5% a year.
A) Decay
B) Growth
- 2. Growth or decay? Annual sales at a company are $372,000 and are growing at a rate of 5% a year.
A) Decay
B) Growth
- 3. Growth or decay? The value of a car is $12,500 and it is diminishing at a rate of 7.5% a year.
A) Growth
B) Decay
- 4. If the population at Creekside is 500 and increasing at a rate of 1.5% a year, how many students will there be in 5 years?
A) 3x1013 students
B) 539 students
C) 652 students
D) 1006 students
- 5. Annual sales at a company are $372,000 and are growing at a rate of 5% a year. What will their sales be after 8 years?
A) $546,590.04
B) $9,533,953.13
C) $549,613.43
- 6. If $60,000 is invested at a rate of 2.5% and it is compounded annually, what will the balance be after 4 years?
A) $66,228.77
B) $66,181.19
C) $146,484.38
- 7. What is the total amount after 4 years if $1000 is invested at a 4% rate and compounded annually?
A) $1169.86
B) $217,795.33
C) $1040.60
D) $1172.58
- 8. Iodine-52 has a half-life of about 6 days. About how much is left from a 70-gram sample after 30 days?
A) 2.33 grams
B) 2.19 grams
C) .000006 grams
D) 5 grams
- 9. $400 is invested at 6% compounded annually. What is the total amount after 8 years?
A) $637.54
B) $17,179.87
C) $3392.00
D) $243.83
- 10. What is the decay rate in this equation? f(x)=2(.75)x
A) .25%
B) 25%
C) .75%
D) 75%
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