Mickey is a 12-year-old dialysis patient. Three times a week for the entire year he and his mother, Sue, drive 20 miles one way to Mickeys dialysis clinic. On the way home, they go 10 miles out of their way to stop at Mickeys favorite restaurant. Their total round trip is 50 miles per day. How many of those miles, if any, can Sue use to calculate an itemized deduction for transportation? Use the mileage rate in effect for 2018. (Round your "Itemized deduction" answer to 2 decimal places.)

Number of miles to be used 6,240 Itemized deduction