Cassandra saved $85.25 to buy a stereo. the day she bought it, it was on sale. she had $9.73 left over. how much did she spend on the stereo?

The purchasing agent for a company that assembles and sells air-conditioning equipment in a latin american country noted that the cost of compressors has increased significantly each time they have been reordered. the company uses an eoq model to determine order size. what are the implications of this price escalation with respect to order size? what factors other than price must be taken into consideration?