Santucci Appliances received an invoice dated September 14 with terms 310 E OM for the items listed below 6 refrigerators at S1080 each loss 20% and 4% 2 4 dishwashers at $636 each less 15. 126% and 5% (a) What is the last day for taking the cash discount? (b) What is the amount due if the invoice is paid on the last day for taking the discount? (c) What is the amount of the cash discount il a partial payment is made such that a balance of $2100 remains outstanding on the invoice