#### Answer

The person has covered a distance of 4.2 kilometers.

#### Work Step by Step

We can find the total distance $d$ in meters.
$d = 6\times 700~m = 4200~m$
We know that 1 km = 1000 m
We can convert the distance to units of km.
$d = \frac{4200~m}{1}\times \frac{1~km}{1000~m} = 4.2~km$
The person has covered a distance of 4.2 kilometers.