Answer:
raoul is 16 and estaban is 22
You can stack 77 books into 7 piles of 11, or into 11 piles of 7. So in two different ways.
60 cents per pound because 2.5 x .6= 1.5
There is 2 ways you can check it.
1: This way can check if you put the decimal point in the right spot. If your answer has the same number of digits after the decimal point as the number you were dividing, then that is correct.
2: multiply your answer by what you were dividing by. If your doing it right, your answer will be the number you were dividing.
