Hello, would like someone to answer these questions so that I can cross-check my work! Some explanation for each question would be helpful in understanding if my answers are wrong, thank you!

Question 1 (a) The following were transactions of Delphi Enterprise for the month of July: (1) On 1 July, the company established that they cannot collect $8,000 from a customer and this amount has to be written off. Assumes the company uses the allowance method. (2) On 15 July, the company purchased $3,000 of supplies on credit. (3) On 18 July, the company received a utilities bill amounting $400. (4) On 20 July, the company entered a contract to buy a new machine costing $20,000 3 months later. The machine will be paid entirely in cash. (5) On 23 July, a customer paid $5,000 owed to Delphi Enterprise. (6) On 25 July, the company declared dividends of $20,000 to be paid 1 month later. (7) On 31 July, the company hired a new staff at a monthly salary of $3.100. The new staff will start work on 1 September. Analyse the above and record the journal entries. Narrations are not required. (12 marks) (b) An analysis of the liquidity and efficiency ratios for CBA Ltd shows the following results. Ratio 2019 2018 Current ratio 2.4 2.1 Acid-test ratio 0.8 1.2 Days' sales in inventory 32 days 20 days Days' sales uncollected 35 days 25 days Days' purchases in accounts payables 70 days 29 days Use the above financial ratios to analyse the financial performance of CBA Ltd. (13 marks)