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The UV-5R covers the 2m (VHF) and 70cm (UHF) bands. Propagation at these frequencies is mostly line-of-sight, which depends hugely on the environment. With the built-in antenna at ground level in an urban area you'd probably only get a few tens of miles. On top of a hill you could get hundreds. If you plugged it into a 14-element Yagi on a tower you'd do very well indeed, but nobody uses a hand-held for that.
On these amateur bands it's common to use repeaters, which receive on one frequency and re-transmit on another, to improve range. They're usually sited on a nearby hill and are run by local amateurs for no profit.
Tens of miles is theoretically possible in this environment, but realistically maybe a few blocks.
I assumed he meant tenths
Language here was like when I first began studying comp sci lol