Answer:
Step-by-step explanation:
a) The interest generated over the 9 months is how much the woman paid for use of the money, then:
[tex]I=C.t.i\\C=3000\\t=9\\i=3.5%=0.035\\I=3000.9.0.035=945\\I=945[/tex]
Therefore , the woman paid $945 for the use of the money.
b) The total amount that she repaid the bank is:
[tex]C_{t} =C+I=3000+945=3945\\C_{t} =3945[/tex]
Finally we have that the woman paid $3945 to the bank
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