Digicomp produces a new telephone system with integrated TV screen. Its learning factor is 80%.
(a) how long it takes to Digicomp make unit number eleven when the first took him 56 hours?
(b) As a purchasing agent of your company, you expect to buy units of the 12 to the 15 of the new telephone system.
What would be the expected cost of the units if Digicomp charge $30 for each hour of work?
please show step by step.