To begin marketing your product line, you must travel to Phoenix, Arizona, to attend a promotional products trade show. While you are there, you identify a new product for Pen Inc. You instruct your team to create a new Material Master Record for this trading good. It will use the same settings as your PPEN__ except for the name and cost. The name of the new trading good is DPEN__ (Deluxe Pen), and the cost will be $3.75 each. Upon return from your trip, the CFO tells you to create a new expense account to track travel expenses. As such, your team creates a new travel expense account (744_ --_) to track these expenses. You will need to detail the expenses from your trip and post them to this new General Ledger account and the Marketing Cost Center. On the flight home, you looked in the airline magazine and realized this might be an excellent place to advertise your product line. Once again, the CFO tells you to track this expense using a separate General Ledger advertising expense account (748_ ---). You take out your first ad with South West Airlines - you will need to receive an invoice from