Teresa is a civil engineer who uses her automobile for business. Teresa drove her automobile a total of 11,965 miles during 2019, of which 80% was business mileage. The actual cost of gasoline, oil, depreciation, repairs, and insurance for the year was $6,440. Teresa is eligible to use the actual or standard method. If required, round your answers to the nearest dollar.

a.How much is Teresa's transportation deduction based on the standard mileage method?How much is Teresa's transportation deduction based on the actual cost method?