Answer:
Step-by-step explanation:
−48−[18−((−16)−(5−(4−7)))]
⇒ −48−[−18((−16)−(5−(−3)))]
⇒ −48[18−(−16)−8)]
⇒ −48[18−(−24)]
⇒ −48−(18+24)
⇒ −48−42
⇒ −90
210 miles on the first day so 1/5 longer than the 2nd day