The volume of air inside a rubber ball with radius r can be found using the function v(r)=4/3 πr3 . what does v[5/7] represent?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?