0 out of 5 points A brand new laser scanning system for a lab costs 446k and is used in such a way that causes its value to depreciate at 20% per year. This particular system's expected lifetime is defined as the number of years of operation until it's value in the company's accounts reduces to 25% of it's original value. Calculate the expected lifetime of this laser system in (full) years. Selected Answer: 557,500 Correct Answer: 7.00.5