Can someone explain why i shouldn't use "i" in a persuasive essay? and whats a better word than "i" to use?

You are not supposed to use any personal pronouns. Using personal pronouns show that you are using your opinion in an essay. This is bad because an opinion cannot be proven, and in an essay, your audience does not want your opinion, they want the facts.

in at least 150 words, discuss the tone of the narrator in "i stand here ironing," and explain how it impacts the telling of the story

in the secret life of walter mitty, the main character leads a dull life, or so he thinks.in all his daydreams he plays the role of some hero or a man who is unbelievably resourceful.whether a pilot, a surgeon   or even a criminal, he is better, so much better than all the rest of the characters in his delusions.he comes up with ideas nobody else could have conceived .when he comes back to reality, whatever he has to deal with seems silly, boring without any motivation to deliver.

in a sound of thunder a hunter,eckles, wants to use a time machine to go back in time to catch a tyrannosaurus rex. by then, 2055 elections were go held and a   new hitler was beaten by a far better candidate, keith.once he and other men have traveled,   he gets cold feet. he in   some way has known   this is not a good idea.he hears this sound , too strong for him to put up with . hopeless, he abandons the project making a mistake - another one as the first is to travel in time-that causes a butterfly effect when he comes back. in the end , changes reality for worse; the anti human anti christ deutscher,   is the president.