Answer:
0.345 km
Explanation:
If there are 1000 meters in a kilometer and Andre ran 345 of those 1000 meters Andre ran 345/1000 of a kilometer.
345/1000 km = 0.345 km
1000 m = 1 km
1000 x 0.345 = 1 x 0.345
=> 345m = 0.345 km
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