Answer:
a) 100%
b) Yes
c) Total airfare
Step-by-step explanation:
A) For tax purposes the portion of Justin's trip that is regarded as being for business is 100% and this is because we can consider weekends and Holidays as business days if they are preceded by a business day and also succeeded by a business day(s) also considering that Justin's flight was delayed from Wednesday to Thursday
B) Yes it will affect my answer because it would mean that Saturday, Sunday and Monday will become Non-business days
C) The total cost of the Airfare qualifies as deductible business expense in both A and B