If it took 4 miles per hour you multiply that twice cuss its traveling back then forth so you repeat the same process 30 miles times 2 which is 60 hope this helps.
<h2><em>Too many.</em></h2><h2><em></em></h2><h2><em></em></h2><h2><em>In all seriousness... Do 644 / 7. He Sent 92 Texts on Average every day.</em></h2>