McKenzie runs a shop. The records she keeps are of cash received and paid plus cheques received. Her bank statement and cheque counterfoils act as her bank record. All cheques received are banked immediately. During May 2007 McKenzie did not sell or buy anything on credit. The following information for May 2007 is also available: May 8 Sales for week: Cheques $975 Cash $206 Banked all cash except for $200.