Hi, there.Do not worry about the unhelpful. When you see the question, you are welcome just to take it. I will vote for helpful if your answer is helpful. Some explanations, if the question involves graphs, calculations please do itwell and step by step. Please be quick, don't take long, take the questions you see it , post back within45mins with theanswer tothe question.Then you will get the questionif it's within the time and reasonably good with the correct answer. Don't make the explanation too long but good enough and precise use of words.I don't want to wait long as I wish to learn faster! So take the question fast and I ll vote if its helpful, Thank you!