Answer:
81.82 or 122.22 one of them sorry I'm not very specific :0
Step-by-step explanation:
45% of students prefer vanilla ice cream.
549 + 671 = 1220 total students
549 / 1220 = 0.45 or 45%
Answer: Train 2 is traveling 4 miles per hour faster than train 1.
Hope this helps..... Stay safe and have a Merry Christmas!!! :D