Four people each run an equal length legs on a relay race. The expression 4v determines the total distance of the relay race. What does variable v represent.

Skew lines(segments) are lines(segments) in 3 dimensions that do not intersect the given segment and are not parallel to it.  ae, bf, eg, and fh are your skew segments.  i hope that : )

Igot the answer of 15.8 years.