Make Speed Cost 1 10 9.8 1 20 12.5 1 20 14.2 1 30 14.9 1 40 19 1 40 16.5 1 50 20.9 1 60 22.4 1 60 24.1 1 70 25.8 0 10 15 0 20 14.5 0 20 16.1 0 30 16.5 0 40 16.4 0 40 19.1 0 50 20.9 0 60 22.3 0 60 19.8 0 70 21.4