Well, I do not know what operation you mean by into but I will convert them for you. There is 3 feet in one yard, so 1.5 yard is basically 4.5 feet. 2.5 feet into 4.5 feet is a 2 foot difference if you are asking how to make 2.5 feet into 1.5 yards. I hope this helps :-)
Well I'm not sure what the answer would be since I'm not that smart but I did get the answer of 90, I did this by dividing 72 by 80 which equals .9 and I multiplied that by 100 and got 90.
