completed 4.2 hours of service work for customer hank cobb. hank also purchased a new starlight trailer. the selling price for the trailer is 1,485. be sure to include the sales tax on the trailer an the service work. the full amount due, (sales invoice G4017), is paid with a bank credit card. the bank will charge granite bay jet ski, inc., a credit card fee (1-4%) which will be billed and recorded at the end of the month