Spanish language Q&A Forum

Is anyone else just chipping away at the Spanish lessons here hoping that one day they will understand enough to have the courage to talk to someone in Spanish?  I'm level B1 in the lessons, but probably A2 when it comes to writing, A1 when it comes to listening and A0 when it comes to converations! 
I fully understand I won't ever be fluent unless I talk with Spanish people, but I'm level C2 at making up reasons why today just isn't the day.

hi room and experts

Please clarify why 'tener  + participio cases' must have agreement in gender and number with the noun acting as a direct object,  whereas  this rule does not apply in  'haber + participio cases'

For example  -  Tienes ya pensada la estrategia para convencer a Inés? - (show agreement)

He pintado dos habitaciones. (does not show agreement)

I made a couple of mistakes in my last communication. The title should have said, "the Spanish Preterito Indefinito" not "the Spanish Preterito Imperfecto. Second, the word "open" should be removed where it appears at the end of a sentence. Sorry everyone.

The question does not enquire about the existence of a florist but the location. Therefore according to the lesson explanation the answer should be “Donde está”.  Please point me to the part of the lesson I have not understood.