With only 3-4 games remaining in the season, the PAC12 only has two bowl eligible teams (Utah and Oregon). That said, three teams (USC, Washington, and ASU) are only one win away, while the remainder of the North sits at 4 wins. No team has been eliminated from bowl consideration, with Colorado being the lone team with 3 wins. It has been a little bit of a strange year, in that the teams that had poor non-conference schedules (Oregon State, UCLA, USC) have performed relatively better in conference, and teams with spotless out of conference records (Washington, WSU, CAL) have struggled in conference.
My guess is 10, Colorado and Zona miss out.