James begins a savings plan in which he deposits $100 at the beginning of each month into

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James begins a savings plan in which he deposits $100 at the beginning of each month into an account that earns 9% interest annually or, equivalently, 0.75% per month. To be clear, on the first day of each month, the bank adds 0.75% of the current balance as interest, and then James deposits $100. Let Bn be the balance in the account after the nth deposit, where B0 = $0.

a. Write the first five terms of the sequence {Bn}.

b. Find a recurrence relation that generates the sequence {Bn}.

c. How many months are needed to reach a balance of $5000?

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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