The graph shows the elements found in Earth’s crust. What fraction of earth’s crust is silicon

Ibelieve the total for the tip could be $21.90

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 : )

5\16 x 2\5 = 10/80simplify to 1/80