During the 2020 income year, Sally earned income from three different sources: (a) Salary payments from her weekend job in the Australian Army Reserves; (b) Salary payments from her full time job at McDonalds Pty Ltd; and (c) use of one of McDonalds Pty Ltd's company cars which forms part of Sally's salary package and used exclusively by Sally for private purposes.

Required: With reference to ITAA97 s 6-1(1), classify each of Sally's income sources for taxation purposes. Explain whether Sally is required to pay tax on that income.