AB = -2
CD = -1
BC = -3/-2
AD = -2/-3
The answer is -11.25°F
detailed answer is in the attached image.
Cutwright : 84 / 35 = 2.4 minutes per lap
evans : 96.6 / 42 = 2.3 minutes per lap
loza : 102.6 / 38 = 2.7 minutes per lap
the fastest driver is Evans