Vanessa started with $800 in a bank account that does not earn interest. In the middle of every month, she withdraws 

1

4

of the account balance.   

Which recursive function rule models Vanessa’s balance at the end of each month?




an=800⋅an−1and a1=1/4


an=800⋅an−1 and a1=3/4


an=34⋅an−1 and a1=800

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an=1/4⋅an−1​ and a1=800