Respuesta :
The formula for amount is given by:
[tex] A=P(1+\frac{r}{n})^{nt} [/tex]
Now we are given ,
Principal (P) =$8500
rate (r) =3.9% = 0.039
period of interest (n) =1 for compounded annually
time (t) = 12 years
Plugging these values in the formula,
[tex] A=8500(1+\frac{0.039}{1})^{1*12} [/tex]
Amount =$13452.5773053
Answer : There will be $13452.5773053 in the account after 12 years.