What do the instructions say?
The greates amount of pieces he would be able to use would be 9 because 8 divided by 5/6= 9 and 3/5.the 3/5 piece is too short.
8 is in the tens place. It has a value of 80.
-4+2x>-4
2x>0
X> 0
The first answer.
So-called simplifying, really means, "rationalizing the denominator", which is another way of saying, "getting rid of that pesky radical in the bottom"