Answer:Total deductible expenses= 2695+1900=4595
All of airfare expense will be deductible as travel expense, whereas Hotel, Meals and car are on a per day basis so 11/15 of the costs will be deductible.
Step-by-step explanation:
1) Airfare: All the cost of Airfare qualify as deductible travel expenses as she had to go and comeback as part of a business trip and her spending extra days in Munich don't affect the travel cost or airfare. So we can expense $1900.
2) Hotel, Meals and Rental car: All of these costs are related to the number of days that Betty spent in Munich so only 11 of the 15 days worth of cost can be expensed as deductible
(140+75+30)*(11)= 2695
Airfare =1900
Total deductible expenses= 2695+1900=4595