Carla, the regional manager for a national retail drug chain, is based in Atlanta. During March and April of this year, she has to replace temporarily the district manager in Jackson(Mississippi). During this period, Carla flies to Jackson on Sunday night, spends the week at the district office, and returns home to Atlanta on Friday afternoon. The cost of returning home is $650, while the cost of spending the weekend in Jackson would have been $500. a. presuming no reimbursement by her employer, how much, if any, of these weekend expenses may Carla deduct? b. would your answer in (a) change if the amounts involved are reversed (i.e the trip home cost $500; staying in Jackson would have been $650.)