Exponential Growth And Decay: Question Preview (ID: 22725)

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Olivia purchased a music system worth $18,000 in the year 2001. It loses its value by 6% per year. What is the value of the music system in 2003?
a) $15904.48 b) $14950.51 c) $16920 d) $20224.80
Matthew bought a laptop for $34,000 in the year 2008. Its value depreciates by 4% per year. What is the value of laptop in 2011?
a) $21,700.14 b) $32,640 c) $31,334.40 d) $30,081.024
In 1995, there were 85 rabbits in Central Park. The population increased by 12% each year. How many rabbits were in Central Park in 2005?
a) $210 b) $236 c) $264 d) $23.67
A private high school charges $57,000 for tuition, but this figure is expected to rise 10% per year. What will tuition be in 3 years?
a) $68,970 b) $75,867.00 c) $83,453.70 d) $41,553
Ryan bought a bike for $47,000 in the year 2002. Its value depreciates by 2% per year. What is the value of the bike in 2006?
a) $41,634.60 b) $43,351 c) $45,138.80 d) $50,835.20
Which of the following model is an exponential decay model?
a) y = 12(3.57)^t b) y = 4(1.21)^t c) y = 1 + 6t d) y = 7 (0.98)^t
Max has $30 in a savings account. The interest rate is 10%, compounded annually. To the nearest cent, how much will he have in 2 years?
a) $24.30 b) $34.20 c) $36.30 d) $28.40
In 1985, there were 285 cell phone subscribers in the small town of Centerville. The number of subscribers increased by 75% per year after 1985. How many cell phone subscribers were in Centerville in 1994?
a) about 25,070 b) about 76,776 c) about 43,872 d) about 46,000
Daisy purchased a food processor for $23,000 in the year 2009. It loses its value by 7% per year. What is the price of the food processor in 2012?
a) $18,500.21 b) $28,176 c) $11,969.45 d) $20,150
Adam bought a fish aquarium worth $2,000 in the first week of the year. Its value depreciates by 3% per week. What will the value of fish aquarium after 5 weeks?
a) about $1,717.47 b) about $2,318.55 c) about 1,770.59 d) about $1,659
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