Abu started his business on 1 January 2017 with a financial year end is 31 December every year. A table of account receivable, bad debts written off and estimated bad debts at the rate of 2% of accounts receivable at the end of each year is shown below: Year to 31 December Bad debts written off during the year Debts thought to be impossible to collect Account receivable after deducting bad debts RM 5500 6600 7650 5650 RM 323 415 505 510 2017 2018 2019 2020 RM 120 150 165 125 As account personnel, Abu required your help to: a) Show all entries in allowance for doubtful debt account and profit and loss account. (20 marks) [Total = 20 marks]