The base of a rectangular box is to be twice as long as it is wide. The volume of the box is 864 cubic inches. The material for the top costs $0.50 per square inch and the material for the sides and bottom costs $0.25 per square inch. Find the dimensions that will make the cost a minimum. A printer has a contract to print 100,000 posters for a political candidate. He can run the posters by using any.r number of plates from 1 to 30 on his press. If he uses x metal plates, they 1will produce x copies of the poster with each impression of the press. The metal plates cost $40.00 to prepare, and it costs $250.00 per hour to run the press. If the press can make 1000 impressions per hour, how many.I metal plates should the printer make to minimize costs