Brief Exercise 6-01 (Essay) Explain the basic economics of what is being received and what is being given up in each of the following business transactions. a. A company sells packaging material to another company. The terms of sale require full payment upon delivery. b. A company sells packaging material to another company. The terms of sale require payment over one year with interest. c. A law firm provides legal services to an accounting firm. In lieu of payment, the accounting firm provides accounting services to the law firm. d. A company sells telecommunications equipment for a set fee that includes delivery, installation, a 60-day trial period, a three-year maintenance package (often sold separately), and a year warranty (often sold separately). Payment will be received over one year without interest