BZoom sells toy bricks that can be used to construct a wide range of machines, animals, buildings, and so on. It purchases a red dye powder to include in the resin it uses to make the bricks. The powder is purchased from a supplier for $1.3 per kg. At one production facility, BZoom requires 400kg of this red dye powder each week. BZoom's annual holding costs are 30 percent and the fixed cost associated with each order to the supplier is $50. a. How many kg should BZoom order from its supplier with each order to minimize a. the sum of the ordering and holding costs? b. If BZoom orders 4,000kg at a time, what would be the sum of the annual ordering and holding costs? (Round your answer to 3 decimal places.) If BZoom orders 2,000kg at a time, what would be the sum of the ordering and