When writing a business proposal, you should do all of the following except what? .

Im 16 so im not too sure but dont have any gang or foul language, write professionally and act like you really care about it.

Show his work so he doesn’t get points taken off. this is because even if he can do calculations in his head, he may make a mistake and having it on the paper will not only him find mistakes but show that he was doing the work as well.