The
amount of interest earned from a specific investment can be calculated by
multiplying the principal amount with the decimal equivalent of the given
percentage or interest rate. That is,
<span> I = P x i</span>
Substituting
the known values,
<span> I = ($580)(0.615)</span>
<span> I = $356.7</span>
<span>Answer:
$356.7</span>
Okay. So first 8.25 * 20 = 165. Then you multiply 165 by 3 (165*3). 165 * 3 = 495.
Dan will earn $495 in three weeks.