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- OPEN ENDED Give an example of a quantity that grows or decays at a fixed rate. Write a
realworld problem involving the rate and solve by using logarithms.
- Writing in Math Use the information about car values on page 564 to explain how you can
use exponential decay to determine the current value of a car. Include a description of how to
find the percent decrease in the value of the car each year and a description of how to find the
value of a car for any given year when the rate of depreciation is known.