During the year 2018, Ricki, who is not self-employed and does not receive employer reimbursement for business expenses, drove her car 6,800 miles to visit clients, 11,800 miles to get to her office, and 500 miles to attend business-related seminars. All of this mileage was incurred ratably throughout the year. She spent $570 for airfare to another business seminar and $290 for parking at her office. Using the automobile expense rates in effect for 2018, what is her deductible transportation expense?