Please help me to answer the questions in the pictures with explanation and answer

[Question 23 = 15 marks] 24) The accountant for Hobart Future Group Ltd prepared an aged analysis of accounts receivable balances at 30 June 2023. The percentages of each age group are based on historical analysis and are presented in the table below. Ignore GST. It is company policy to use the allowance method to account for bad debts. Age Estimated Balance uncollectable (%) Current 0.5 $900 900 30-60 days overdue 2 $257 400 61-120 days overdue 10 $64 350 121 days to 6 months overdue 20 $77 220 Over 6 months overdue 40 $51 480 Required a. Calculate the estimated amount for the allowance for doubtful debts as at 30 June 2023. [4 marks]b. Tasmanian Printers and Bookbinders Pty Ltd commenced business on 1 July 2023. On 5 July 2023 it spent $150 000 on industrial printing and binding machinery, payable in two equal instalments on 1 August and 1 November 2023. They Continued BFA103 Accountability and Accounting incurred $4 500 in transport costs to deliver the machinery to the business premises and a further $5 000 in electrical wiring and installation before the machinery could be used for production. These expenses were paid in cash. The supplier informed management the machinery has a productive capacity of 600 000 hours. It is estimated the residual value would be $10 000 in scrap metal at the end of the machinery's useful life. On 30 August 2023, the business purchased a second-hand truck for $35 000 for deliveries. Stamp duty amounted to $1 050. Four new tyres were fitted at a cost of $1 200 to meet roadworthy conditions. The truck was expected to have a useful life of 5 years and a residual value of $5 000. The company has adopted the units of production method of depreciation for the printing and binding machinery and the diminishing balance method for the truck. The end of its reporting period is 30 June. Ignore GST. Required I. Calculate the depreciation expense for the financial years 2023-24 and 2024-25 for printing and binding machinery using: units of production (assuming the production totalled 74 000 hours in 2023-24 financial year and 70 000 hours in 2024-25 financial year)