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Blue Marlin Ltd. has forecast its sales revenues and purchases for the first 6 months of 2021 as follows: Sales ($) 20,000 January February March April May June 25,000 15,000 22,000 25,000 30,000 Purchases ($) 18,000 20,000 30,000 18,000 20,000 22,000 40% of sales are on credit. On the basis of past experience, 50% of the accounts receivables are collected in the month after sale, and the remainder is collected two months after the sale. Purchases are paid two months after they are incurred. The firm expects to have a cash balance of $5,000 on hand as at April 1, and is required to maintain this as its minimum cash balance. Required: a) Prepare a schedule of cash receipts for April, May and June (9 marks) b) Prepare a cash budget for the same period. (6 marks)