Answer
$3.25$ $acres$
Work Step by Step
The conversion factor is $1$ $acre$ $= 160$ $square$ $rods$.
So,
$520 $ $rods^{2}*\frac{1 acre}{160rods^{2}}=3.25$ $acres$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.