Gus has skydived 4 more times than nico. Emma has skydived twice as nick. if emma has skydived 16 times, how many times has gus sky dived?
\(x-\ Gus\\ y-\ Nico\\z-\ Emma\\\\x-4=y\\z=2y\\z=16\\\\ y=\frac{z}{2}=\frac{16}{2}=8\\ x=y+4=8+4=12\\\\ Gus\ sky\ dived\ 12\ times\ and\ Nico\ 8\ times.\)