Final answer:
The Sullivans' total expenses for their six-day trip are calculated by adding the fixed airfare to the daily costs of car rental, lodging, and other expenses, multiplied by the number of days, which equals $2821.
Step-by-step explanation:
To calculate the total expenses for the Sullivans' six-day vacation to the Great Smoky Mountains National Park, we need to sum up the costs of airfare, car rental, lodging, and daily expenses for food, gas, and miscellaneous items. The airfare is a fixed cost, so it does not change with the number of days. The costs of car rental, lodging, and daily expenses are multiplied by the number of days of the stay.
The total expenses calculation is as follows:
Airfare: $973 (fixed cost)
Car Rental: $61/day × 6 days = $366
Lodging: $97/day × 6 days = $582
Daily Expenses: $150/day × 6 days = $900
Adding these amounts together, the final calculation is:
$973 + $366 + $582 + $900 = $2821 as the total expense for their trip.
This calculation gives a basic estimate of the trip costs without considering any unexpected expenses or changes in prices.