rib2 - work 2 sts in the rib pattern
rib2tog - p/k2tog depending on where you are in the rib pattern
(rib3) - work 3 sts in ribbing
rib2tog6times- do 6 decs in rib pattern (which seems odd)
rib2 - do 2 sts in rib pattern and you have 29 sts left.
What's the name of the pattern? The rib 2tog 6 times isn't usually done, but they may want you to dec that much at once for some reason.
sue- knitting heretic