1/2
460 miles = 460 miles
The letter "k" is used to denote the metric prefix kilo (1000), which is a metric prefix. you would not measure miles in kilomiles. But if you were to, 50k miles would be 50,000 miles.
Well it is definetly better to use 1 mile then 1 miles, if you think about it, it sounds better.
3,309.91 miles.