Given:
Principal, P = $342
Interest rate, r = 6.9% = 0.069
number of times compounded, n = annually = 1
Time, t = 3 years
Let's find the amount in the account after the given time.
Apply the compound interest formula:

Where:
P = $342
r = 0.069
t = 3
A is the amount after the given time.
Thus, we have:

Therefore, the amount in the account after 3 years will be $417.79
ANSWER:
$417.79