No. Ladies' is plural. You want "This lady's hat."
Yes, if the sentence is supposed to be in present tense.
Er hat kein Papier in der Schultasche
Wie viele Geschwister hat er? translates as How many siblings does he have?The sentence is grammatically correct.
fascinator
The grammatically correct form of Erste Stunde Hanz hat Geschichte is Hanz hat Geschichte in der ersten Stunde (or Hanz hat Geschichte in der ersten Stunde) -Hanz' first lesson is history.
The correct name for the graduation hat is a mortarboard.
beret
The sentence is grammatically incorrect and translates as How many town does America have? or How many town are there in America?The grammatically correct form is Wie viele Städte hat Amerika?
She has a hat box.
That's a great hat. Wow, that's a great hat!
Ladies can wear a hat anywhjere but men can only wear a cat outside and in their own house - traditionally
That is the correct spelling of the noun "hat" (worn on the head).