Joining the army/jobs?

so, i got a 39 on my asvab ... i no bad i want to do these jobs animal care specialist,ammunition specialist, bridge crew member, cannon crew member, cav scout, concrete and asphalt equipment operater , fire fighter, general construction equipment operater , watercraft operater wheel vehicle mechanic , mabe mp, mabe infantryman, what are my chances of getting some of them jobs with my bad score ? whitch ones tend to be open availability wize ? just kind of wondering what to suspect