Answer:
288
Explanation:
To calculate the interest earned after 12 years, you can use the simple interest formula:
Interest = Principal x Rate x Time
Given that Mr. Sobieski has invested $800 at an interest rate of 3% for 12 years, we can plug these values into the formula:
Interest = $800 x 0.03 x 12
Interest = $288
Therefore, the interest earned after 12 years would be $288.