Roper electronics received its bank statement for the month of august with an ending balance of $11,740. roper determined that check #613 for $155 and check #601 for $420 were both outstanding. also, a $6,900 deposit for august 30 was in transit as of the end of the month. northern regional bank also collected a $5,000 note receivable on august 1 that was issued march 1. accrued interest is $250. northern regional bank charged a $35 fee for the collection service. the bank statement reveals a bank service charge of $20. a customer check for $68 was returned with the bank statement marked "nsf." the ending balance of the roper cash account is $12,938.?