How are you in school?
(probably talking about your grades)
There is not an exact translation for "You are mean". Instead you can say: "Eres malo", "Eres cruel"... -Tu eres malo
It means: how do you get to school. How you answer it depends on how you get to school.
You are good in school Eres bueno en la escuela You are a good student Eres un buen estudiante
maravilloso
It means: "we have it in school"--- en la escuela la / lo tenemos...In school we have... en la escuela tenemos...
You probably mean, "...que aprendes en la escuela?" This mean, "... that you learn in school."
"Estas en la escuela" in English means "You are at school."
donde - Where eres - are you which equals Where are you a student alumno - student
"En la escuela los alumnos" in Spanish translates to "In school, the students."
"Que hay en tu escuela" in English means "What is in your school?"
"Quién escribe en la escuela" translates to "Who writes in the school" in English.
they are going (or go) to school