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Page (5 of 6) Exercises:   1    2    3    4    5    6  
Exercise 5

On January 1st Kendra puts $100 into her bank account. On the first of each month after that she deposits an additional $100. Unfortunately, during the middle of the month she always has to withdraw 75% of her money to pay bills.

(a) How much money is in Kendra's account at the end of March?

(b) How much money is in Kendra's account at the end of n months? Write your answer in closed form.


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