I need help with formulas for this work book please thank you

Case Problems Executive Transport, Inc. is a $ company that rents cars, vans, and limos to a wide range of customers. Customers frequently call Executive Transport's sales staff to receive quotes for rental expenses. As gas prices have been increasing the last few years, customers have become more conscious of fuel efciency and its impact on their total cost of transportation. As a service to its customers, Executive Transport has modied its Quotes workbook to include information on its cars' gas mileage and an estimate of the gas expense related to customers' planned trips. All that remains to be added is information specic to each of the car types, and a more detailed analysis of the interaction between gas prices and total cost of transportation, and the gas mileage of cars and its impact on the total cost of transportation. Complete the following: Sales Open the workbook named Quotes.xlsx located in the Chapter 8 folder, and save the file as Transport Quotes.xlsx. Examine the Analysis worksheet, and apply appropriate names to cells D17:D20. Set up the structure of a one-variable