You should use the form "Ud" when speaking ti the principal of your school.
La empresa privada:
La empresa privada es una organización con fines de lucro que es propiedad de inversionistas particulares.
#HopeThisHepls
Answer:
The answer is Tú (I speak Spanish, I am a Peruvian native, I can help you with your Spanish tasks)
Explanation:
(Lexema y sufijo de papelería)
Stationery stem and suffix