Answer:
a. inportante --> importante
b. comviene --> conviene
No se sobre la c pero espero que te ayude, perdón.
Answer:
quieres que tu ensayo haga que el autor esté de acuerdo contigo
Explanation:
you want your essay to cause the author to agree with you.
you want to make a claim, provide evidence, and tell the author why they should agree with you.