The credit terms offered to a customer by a business firm are 3/10, 1/30, which means that (CSLO 1, CSLO 4) the customer must pay the bill within 10 days. the customer can deduct a 3% discount if the bill is paid between the 10th and 30th day from the invoice date. the customer can deduct a 3% discount if the bill is paid within 10 days of the invoice date. two sales returns can be made within 10 days of the invoice date and no returns thereafter