please help me with number 1.1 and 1.2

QUESTION 1 28 marks Precious Beauty Products (Pty) Ltd buys inventory (cosmetic products) and then sells the products to various chain stores at a profit. PART A: FUNCTIONS AND ACTIVITIES There are various functions and activities within each function of the accounting system for the various cycles. REQUIRED Marks 1.1 List the seven main functions in the accounting system for credit sales and receipt transactions with a brief description of each function. (15) 1.2 (13) List the five functions in the accounting system for credit purchase and payment cycle with a brief description of each function