If they lose 72% of their weight, then they are only 28% of the original amount. Let n be the original weight of the mushrooms. Then: 0.28n=12.25 n=12.25/0.28=43.75 lbs of mushrooms necessary to start with ☺☺☺☺
The answer should be 6! all you have to do is plug the numbers into the equation! it would be like this: -1^2+3^2+(-1)-3 doing all of that would equal 6!