3. During 2018, Andy made seven trips on behalf of Pelican as an outside consultant (business activity code 541330). On a typical trip, Andy flies by commercial airline to New Orleans, Houston, or Corpus Christi, and then takes a company helicopter to the offshore platform. If necessary, he rents a room at a local motel. Sometimes offsite consultations can solve the problem, and a trip to the rig is not necessary. His expenses for these trips are as follows: Airfare $5,100 Lodging 3,100 Meals 2,200 Ground transportation (taxis, limos, rental cars) 750 After each trip, Andy recovers his expenses when he is paid by Pelican for the services rendered. Pelican does not require an accounting for the expenses and reimburses Andy based on his verbal report of how much he spent. 4. In early January 2018, Sarah was paid for three portraits she painted and delivered in late 2017. During 2018, Sarah completed 14 portraits. Payment was received for 11 portraits when they were delivered to the buyers. One portrait was delivered in mid- 2018 to the CEO of a company who promised payment within 30 days. Payment was never received, and the company has since entered bankruptcy. Since the CEO has been indicted for securities fraud, Sarah feels certain that she will never be paid for the portrait. The final two portraits were delivered in late 2018, and payments for both were received in early 2019. In December 2018, Sarah accepted $3,200 as payment for a portrait to be done in 2019. Although she did not like the arrangement, the customer said the prepayment was motivated by anticipated cash-flow considerations. 10. 11