Question: Osborn Company's unadjusted book balance at June 30, 2014 is $15,000. The company's bank statement reveals bank service charges of $75. Two credit memos are included in the bank statement: one for $1800 which represents a collection of an account receivable that the bank made for Osborn and one for $20 which represents the amount of interest that Osborn had earned on its interest-bearing checking account in June. Based on this information, Osborn's true cash balance is?