What is the difference between fixed and variable expenses of a conference? Group of answer choices Fixed expenses change based on the number of attendees, while variable expenses remain the same regardless of attendees. Fixed expenses remain the same regardless of attendees, while variable expenses change based on the number of attendees. There is no difference between fixed and variable expenses.How is a registration fee for a conference typically calculated? Group of answer choices Based on the cost of the venue Based on the number of attendees Based on the total cost of the conference divided by the expected number of attendees