4. You buy goods on an invoice dated October 28, with terms of 2/20, n/45. What is the last day of the discount period? 5. You buy goods at a list price of $820. If you receive a trade discount of 25% and terms are "215, n/30," what amount must you pay if you pay within the discount period? 6. You receive an invoice for $18,300 with terms of 5/15, n/60. If the supplier has a policy of allowing a cash discount for partial payments and you pay $11,500 within the discount period, calculate the amount of credit you will receive for this payment. Amount credited -Amount paid Complement of cash discount rate $11,500 7. For terms of 8/10, n/60 determine the annual rate you, in effect, pay the supplier if you fail to pay the invoice at the end of the discount period. Express the rate with 2 decimal places. structure-uploads.s3.amazonaws.com/account 57850...bdb2a0b9b11ce16543d833acb643cObc2bf77d610928171760b3