Because it is more efficient to produce larger numbers of items, the cost of producing a certain computer disks is inversely proportional to the number produced. If 4000 can be produced at a cost of $1.20 each. Find the cost per disk when 6000 are produced. How can I solve this problem?

An ice cream shop sells 5 times as many cakes cones as waffle cones. use x to represent the number of waflle cones the ice cream shop sells and use the variable to write an expresion for the number of cake cones the ice cream shop sells. enter the expression for the number of cake cones the the ice cream shop sells