What number does not change the value when added or subtracted? A) 2
B) 0
C) 10
D) 1
I need answers fast!

B) 0 is the correct answer.

Num of plants = (original#ofplants)*(1.6)^t

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 : )