Required: Assuming that Nadia is in the business of earning money from singing, discuss whether each of these receipts constitutes ordinary income due to being normal business proceeds (citing authority where appropriate) (4 marks): Nadia is a singer who is yet to be a major superstar, but has a growing fanbase. She makes most of her money from live singing performances. During the current tax year she made the following amounts: $80,000 from receipts from weekly live performances. $10,000 from giving a once-off class (lasting 2 full days) on singing. $2,000 from selling a signed copy of a photo of her undertaking her first concert