I don't know what's the answer because I'm middle school but I know that you can try your best when I don't answer something I try but if I don't try it I guess you can only guess in occasions but if you know the answer you should do it and if you guess you should remember to try before that when intelligent person I hope you get to answer have a nice day God bless you and happy Christmas 2017 and happy new years for 2018
