Web Reference: Chapter 4 Exponential Word Problems 1. Helen invests $10,000 in a high-yield uninsured certi cate of deposit that pays 12% interest annually, compounded every 6 months. unt A of the certi cate after t years (b) What is the amount after 3 years? The population of a small town can be modelled by the exponential function P(t) = 5000(1.02) t , where t represents the number of years since the current population count. Write a function giving the amount of money in the bank account as a function of time. b. How much money will Tanya have in her bank account after 4 years? c. When will the amount of money in her bank account reach $4500? d.
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