Given that the principal (P) is $525, rate of interest (R) is 2(3/5)%, and the time (T) is 6 months (i.e. 0.5 year).
Then the total interest (SI) on the principal is calculated as,

Now, solve for the amount (A) as,

Thus, Jeanine will have $531.82 in the account at the end of the 6 months.in