Answer:
14 years
Step-by-step explanation:
To find the answer you have to use the formula to calculate time:
t=(1/r)(A/P-1), where:
t=time
r=rate of interest=4.6%
A=accrued amount=$328.80
P=principal amount=$200
t=(1/0.046)*(328.80/200-1)
t=21.74*(0.644)
t=14
According to this, the answer is that she opened the bank account 14 years ago.
