Answer
The total amount after 4 years is 10,667.91 dollars.
The interest earned is 1667.91 dollars.
Work Step by Step
Using the compound interest table, the compound amount on 6% for 2 years is 1.1236.
After 2 years the savings balance is
$4000\times1.1236=4494.40$
The 2nd depsosit brings the balance to $5000+4494.40=9494.40$.
After 2 additional years the balance is
$9494.40\times1.1236=10,667.91$
The interest earned is the ending balance minus the principal deposits.
$10,667.91-4000-5000=1667.91$
