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INTEREST Kordell opened a savings account with $1200 that earns 14% simple
interest. Because simple interest is based on the principal deposit, the interest
rate means that he earns $12000.14 = $168 each year. The balance of the
account each year can be represented by an arithmetic sequence.
a. Write the balance of the account after each year as a sequence.
b. Write an equation to represent the sequence.
c. After how many years will Kordell have at least $4000 in his account?