The table below provides a firm's projected sales for the year 2021. About 35% of a month's sales is collected in the same month whereas the remainder is collected in the next month. Purchases are 80% of sales, and are made a month before the sales month. The firm's average payment period (APP) is 27 days. Assume there are 30 days in a month. Sales (RM) July, 2021 August, September, 2021 2021 54,000 58,500 52,500 (a) What is the total amount of sales collection in August 2021? (2 marks) (b) What is the total amount of purchase disbursement in August 2021? (3 marks)