So the problem is kinda tricky, umm just caulucate the answer times subract add divide the problem by anything and get an answer not right not wrong as long as you did it i guess. Ummmmmmm for me the question was on a test paper and my teacher didn't go over nothing like the problem so i just guessed ummmmmmm it was a wrong guess but i did make a 95% so that's a good accuracy to be honest i didn't care because we had report cards out and stuff so the quiz would'nt be on my grade list so i was fine others made 60's and below and ^ (higher) so i was like i said fine but not great my boyfriend of course did better happpy for him just not my grade he made a 1 chance higher score which means you can go back and change yoour answer and that's he made a 109% i know not a thing but bonus are so when that happened we broke up i was mad about his grade and by grade he made a A% ^ and higher i made a c and lower so that one tiny tricky question made me hurt and break up with my baby boy my only child the only person who was by my side i know your saying how ? but 9th grade is stupid so things ust be things but i hoped you learend for this and good luck !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!