The value of the account would be $15,389.81.
The formula for compound interest is:
[tex]A=p(1+\frac{r}{n})^{nt}[/tex],
where p is the amount of principal, r is the rate expressed as a decimal number, n is the number of times the interest is compounded per year, and t is the number of years.
Our interest rate is 4%=4/100 = 0.04.
Substituting our information we have:
[tex]A=7500(1+\frac{0.04}{12})^{12*18}=15389.11[/tex]
