Answer: 4.4000 km
Explanation
Considering that 1 km is 10 hm, we can build the following conversion:
[tex]\frac{10hm}{1km}=\frac{1km}{10hm}[/tex]
Then, we have to multiply this conversion times the number of hm we have:
[tex]44hm\times\frac{1km}{10hm}=4.4000km[/tex]
