The cost of similar bottles of milk is proportional to the *volume*. a bottle which has a radius of 36mm costs 75p.
a) what is the price of the bottle with a radius of 45mm?
b) what is the radius of the bottle which costs £1

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?