Final answer:
The interest earned on $720 at a rate of 4.25% over a period of 3 months is $30.60.
Step-by-step explanation:
The question is asking about $720, at an interest rate of 4.25%, over a period of 3 months.
To calculate the interest earned, we multiply the principal amount ($720) by the interest rate (4.25%) and divide by 100:
Interest = ($720 * 4.25) / 100 = $30.60
Therefore, the interest earned on $720 at a rate of 4.25% over a period of 3 months is $30.60.