Answer:
$17.596 by paying the balance off in four months instead of during the grace period.
Explanation:
calculate the interest rate per month by dividing the annual percentage rate (APR) by 12:
23.99% / 12 = 1.9992%
Next, let's calculate the balance remaining after the three monthly payments of $15 each:
$99.99 - ($15 * 3) = $99.99 - $45 = $54.99
Now, let's calculate the interest charged for the four months on the remaining balance of $54.99:
$54.99 * (1.9992% / 100) * 4 = $54.99 * 0.019992 * 4 = $4.399 * 4 = $17.596
SKEEYEEEE