Answer:
You use preterite form when talking about past actions
ex: Ella caminó por el parque
You mainly use the imperfect tense when talking about repeated, usual, or habitual actions in the past
ex: Los sábados yo jugaba con mi vecino
11: mejor
12: mas, como
The rest you can translate to get your answers
how are we suppose to help you do this if this project is about you
a2+b2=b2
16squared+12squared=x2
256+144=400squared
Translation of what you asked:
Conclution
of corruption in Ecuador.
My A: go to www.hrw.org
Explanation: