Respuesta :
Answer:
facts if it was an argumentative essay then you would state opinions
Explanation:
Usually in a formal essay the thesis is in the introduction and also stated through out the essay.
I am not the smartest person in the world but I hope this was helpful
Answer:
facts
Explanation:
An formal essay is talking about a topic and needing to have facts(evidence) to support the thesis while an informal essay can use a more relaxed structure and use opinions, bu in this case your answer is facts.