A taxi charges $2. 50 for the first mile and $0. 40 for each mile after that. The expression below shows how to find the total cost, in dollars, of a 20-mile taxi ride. 2. 50 0. 40 (20 minus 1) What is the cost of the ride? $9. 50 $10. 10 $55. 10 $58. 0.