Hello there. To solve this question, we'll need to remember some properties on investments.
The exact interest can be computed by the formula:
Principal * rate * time /365
In this case, we'll have:
13000 * 0.0825 * 210/365 = 617.05
The maturity value of the loan will be:
Principal + Interest owed
In this case,
13000 + 617.05
Add the values
$13617.05
This is the answer to this question.