Answer:
The amount in her savings account at the age of 18 years should be $97107.29
Explanation:
As the complete question is not given, by finding a similar question is found online and it is enclosed herewith.
From the data the current per year cost of college is given as
PV=$12500
Rate of Growth=i=4%
The cost of college when the baby is 18 years is given as
[tex]FV=PV*(1+i)^n\\FV=12500*(1+0.04)^{18}\\FV=\$25322.71[/tex]
Using the present value of growing annuity find the four years college fee
[tex]Total Money=(\frac{C}{r-g})*(1-(\frac{1+g}{1+r})^n)*(1+r)[/tex]
Here
[tex]Total Money=(\frac{25322}{0.07-0.04})*(1-(\frac{1+0.04}{1+0.07})^4)*(1+0.07)\\Total Money=\$97107.29[/tex]
So the amount in her savings account at the age of 18 years should be $97107.29