1.   Real Estate Julie bought a house for $100,000 five years ago. If the value of the house has appreciated 5% per year, how much is it worth now?
    A. $127,628.16 B. $125,000.00
    C. $77,378.09 D. $119,643.57
    Hint

  2.   Business An analyst estimates that the computers his company just bought will depreciate at a rate of 25% per year. At this rate, approximately how long will it take a computer to depreciate to 30% of its original value?
    A. 4 years B. 5 years
    C. 3 years D. 10 years
    Hint

  3.   Paleontology A fossil is found that contains 10% of the amount of carbon-14 found in a living being. About how old is the fossil?
    A. 17,600 years B. 19,200 years
    C. 20,700 years D. 15,300 years
    Hint

  4.   Two cities have insect problems. The insects in City A increase exponentially according to the equation y = 120,000e0.04t. The insects in City B increase exponentially according to the equation y = 90,000e0.08t. In 15 years, which city will have more insects, and by approximately how much?
    A. City A, by about 80,000 B. City A, by about 30,000
    C. City B, by about 80,000 D. City B, by about 30,000
    Hint

  5.   Two cities have insect problems. The insects in City A increase exponentially according to the equation y = 120,000e0.04t. The insects in City B increase exponentially according to the equation y = 90,000e0.08t. When will the cities have an equal amount of insects?
    A. at t = 7.89 years B. at t = 3 years
    C. at t = 7.19 years D. at t = 34.66 years
    Hint



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