Suptor Inc. has the following information at the end of April:
|April Activity for the Bank Reconciliation:|
|Balance per bank statement, end of April||\$10,000|
|NSF check returned with April bank statement||\$1,000|
|Deposit in transit at end of April||\$8,000|
|Checks written not cleared the bank at end of April||\$15,000|
|Bank service charges for April, not yet recorded on books||\$100|
In the April bank reconciliation, what would be the book's beginning balance?