A. On April 5, the company purchases 400 parts for $8.30 per part, on credit. Terms of the purchase are 4/10, n/30, invoice dated April 5. B. On May 5, Air Compressors does not pay the amount due and renegotiates with the supplier. The supplier agrees to $400 cash immediately as partial payment on note payable due, converting the debt owed into a short-term note, with a 7% annual interest rate, payable in three months from May 5. C. On August 5, Air Compressors pays its account in full