what is in that class
"¿Qué hay en clase?" translates to "What is there in class?" It is a question asking about the things or activities that are present or occurring in a classroom.
A good interpretation would be "What's in class?"
It means, "What is there in the class room?"
who is in your clase What is there in your class? This doesn't make a whole lot of sense. You might want to say "Quién está en tu clase?" meaning "who is in your class?"
"Hay en la clase" means "There is in the class" in English.
Hay muches alumnos en la clase means There are many students/pupils in the class
Que clase tienes en la quinta hora = What class do you have on fifth period?
The litteral translation is - There are students in the class Mexico
Sí, hay cuadernos en la clase. (Yes, there are notebooks in the class.)
Is there a computer in your class?
Sí, hay estudiantes de México en la clase.