In most cases, it's OK to ask for homework help on Yahoo! Answers. When asking, categorise your question in the Homework Help or other appropriate category. To get the best answers, include what you understand so far and where you're getting stuck.
However, question such as "Can someone write this essay for me?" are considered solicitation and not allowed. Yahoo! Answers is a place to share knowledge and not to post solicitations.
Note: Responding to a homework help question with "Do your own homework" or "Read your textbook" is not OK. Learn more about our Question-and-Answer Format to understand what isn't an answer.