Answer:
The audio cable is 1.59 m long.
Solution:
Given, the length of audio cable is 15.9 dm
To find, the length of the cable in meters.
One decimeter is
meters, i.e. 1 dm =

So, in order to convert decimeter to meter, we have to multiply the given decimeter value by
or

Length of the audio cable is

Or

the audio cable is 1.59 m long.