DEF Inc. purchased inventory for $80,000 on credit from GHI Suppliers on August 1st, 2023, with credit terms of 2/10, net 30. DEF Inc. paid the invoice on August 10th, 2023. Calculate: a) The amount of cash DEF Inc. paid to GHI Suppliers. b) The amount of the discount available if DEF Inc. pays within the discount period. c) The net amount DEF Inc. would pay if the invoice is settled after the discount period.