ss inv 3 ace help

There aren't too many problems that have been requested in the past, but here is what I have so far.

s and s inv 3 ace 6
s and s inv 3 ace 37

For anyone who still feels shaky on Inv 2.2 and 2.3 here's some help
s and s inv 2.1
s and s inv 2.2
s and s inv 2 2 summary
s ans s inv 2 3 launch