Fifteen numbers are written on the circle. each number is equal to the absolute value of the difference of the next two numbers (moving clockwise). find the greatest of the numbers, if sum of all numbers is 2.

Jake volunteers to out his younger brother's basketball team in his free time. one of his tasks is to ensure that all the basketballs have enough air in them. given that a properly inflated basketball measures 8.8 inches across, what is the total volume of air inside six of jake’s basketballs? assume that the wall of each ball is infinitely thin.