# 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? |
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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? |
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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? |
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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? |
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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? |
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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? |
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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? |
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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? |
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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? |
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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? |
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a) about $1,717.47 | b) about $2,318.55 | c) about 1,770.59 | d) about $1,659 | |

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