Ranger as secondary

Ok i got 2 questions

Where can i get a quest so i can get ranger secondary ? (atm i have mesmer/warrior) that i can chose of to change.
And can i have a pet, When i have ranger as secondary ?

I think if you already chose your second profession you can only change when you get to level 20.

Yup, this is correct.

yeah well i am level 20
and i am asking where the quest is, to make secondary to ranger

Bump-

Yes a ranger sec will allow you to lead a pet, with or without putting points into beast mastery.

so anybody knows where the quest is to make it to a secondary proffesion is ?, ore meabe i dosent exist ? O_O
have only seen mesmer/warrior sofar.

Go check out the guides here :P

Trainer:
Master Ranger Nente
Location
Regent Valley
Quest Name:
The Rangers Companion
Summary:
Find the shrine of Melandru's statue along the path in the woods. Kill something near the shrine.
Use your Charm Animal skill on one of Melandru's Stalkers when it appears.
Return to Master Ranger Nente for your reward.
Reward:
250 XP

Skills Given:
Charm Animal, Troll Unguent, Comfort Animal
NOTE:
Ranger Secondary Profession Trainer

taken from the guides here You can also talk to the npc next to Sir Tydus once you have completed your initial quest for ST - he'll direct you to all the different trainer's in pre-searing Ascalon who can train you in secondary professions.

As for post-searing, I have no idea where you'd want to go.

And yes, you can have a pet when you take Ranger as secondary profession.