Refer to Apples financial statements and the accompanying notes to answer the following questions. What type of income statement format does Apple use? Indicate why this format might be used to present income statement information. What are Apples primary revenue sources? Refer to the supplementary information provided in the Annual Report to determine this. How much detail does Apple provide on this, and why? Why does Apple make a distinction between operating and nonoperating revenue? What financial ratios, if any, did Apple choose to report in its Selected Financial Data section covering the years 20152019?

https://www.sec.gov/Archives/edgar/data/320193/000032019319000119/a10-k20199282019.htm

This is Apple's 10K for 2019