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. $119,643.57 B. $125,000.00
    C. $77,378.09 D. $127,628.16
    Hint

  2.   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. 15,300 years B. 19,200 years
    C. 17,600 years D. 20,700 years
    Hint

  3.   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 B, by about 30,000 B. City A, by about 80,000
    C. City A, by about 30,000 D. City B, by about 80,000
    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. When will the cities have an equal amount of insects?
    A. at t = 3 years B. at t = 34.66 years
    C. at t = 7.19 years D. at t = 7.89 years
    Hint

  5.   Suppose a new car loses value at 10% per year for the first 5 years. When should the owner sell it if they want to receive 75% of what they paid for it?
    A. after 2 years B. after 3 years
    C. after 2.73 years D. after 2.5 years
    Hint



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