Note: Two questions are related to the following same information Zaid is an engineer and keeps his records on cash basis. During 2020 Zaid collected $75,500 from his customers, and paid in expenses of $52,000. Additional information was as follows: 31/12/2019 31/12/2020 Accounts receivable $18,000 $51,000 Unearned service revenue 12,000 21,000 Acc. Depreciation 10,000 11,000 Additional information related to the year 2020 is: Accounts receivables of $500, were written oft Equipment with a cost of $10,000, 70% depreciated was sold for $900. Instructions: A) Revenues are: B) Expenses are