Florida, New Mexico, California and, last but not least, Kansas.
diecinueve is the correct word
El: if the next word ends in an o/or
La: a
Los: os/ors
Las: as
For example, number 5 would be "El radio pequeño esta en la cocina."
For the bottom:
If it's la/las it's feminine.
If it's el/los it's masculine.
Hope that helped. :)
