Answer:
$6161.43
Explanation:
The compound interest formula applies.
A = P(1 + r/n)^(n·t)
where A is the account balance, P is the principal amount ($2000), r is the annual interest rate (0.063), n is the number of compoundings per year (4), and t is the number of years (18).
Filling in the given numbers, you have ...
A = $2000·(1 +.063/4)^(4·18) ≈ $6161.43