Final answer:
The interrogative word or phrase for the first question is "Dónde" and for the second question is "Cómo".
Step-by-step explanation:
The interrogative word or phrase that makes sense in the first question is "Dónde" which means "where". So the complete question would be "¿Dónde está la clase de administración de empresas?"
In the second question, the interrogative word or phrase that makes sense is "Cómo" which means "how". So the complete question would be "¿Cómo preparas la tarea de matemáticas?"
Learn more about Interrogative Words