Two neighboring towns have had population changes over a ten year period that follow exponential growth or exponential decay patterns. - The population of Town A was 20,000 in the year 2000. It has increased in population by 6.2% per year. - The population of Town B was 60,000 in the year 2000. It has decreased in population by 9.3% per year.   (a) Write n exponential model to describe the population of Town A.   (b) Write n exponential model to describe the population of Town B.   (c) Determine the year when Town A and Town B have the same population. Write our answer to this part in the box below. [You will only receive partial credit if solving by guess-and-check]

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.