Are you allowed to use contractions in an informal essay?

Question

anonymous · Answer

Does this answer your question? https://answers.yahoo.com/question/index?qid=20110703125814AAUKNyb

aamirgsen · Answer

@AnswerMyQuestions no that refers to formal essay, I know you can't use contractions there so I wanted to ask if you could use them in an informal essay.

gottennis121 · Answer

I think it depends who you're writing it to. Friend, yes, teacher (formal) no. so, the answer is probably yes. That's what I think

aamirgsen · Answer

@gottennis121 okay thanks dude I was just verifying

gottennis121 · Answer

thanks for calling me dude. lol

aamirgsen · Answer

@gottennis121 lol I call everyone that, also I play tennis too good luck hope you go to WImbledon some day.