Complex sentence: In addition, there were 13 activations on student laptops for which investigators were unable to determine who activated TheftTrack, as well as 10 activations for which investigators were unable to determine why tracking was initiated.
Split into simpler sentences: In addition, there were 13 activations on student laptops for which investigators were unable to determine who activated TheftTrack. As well as 10 activations for which investigators were unable to determine why tracking was initiated.