Q1Pear & Sons publishes a textbook in the rapidly evolving field of operations management. •Constant annual sales of 100,000 copies.•Printing each copy costs $60.•After a new edition is released, its sales value is discounted at the rate of $2 every 3 months.•Each revision requires $250,000.How frequently should new editions be published? Total ordering cost per year? Total holding cost per year? Total cost per year?Q25G wireless is here! A-Mobile plans to build new cell towers for its growing adoption. •Marketing Dept predicts demand for coverage will grow at rate of 10 towers per year.•Starting a new construction costs $500k.•Each tower costs $50k annually to maintain.How many towers to build each time, and how frequently?