Answer:
A 7:2
Step-by-step explanation:
Recall your d = rt, distance = rate * time
thus

notice, the first car leaves at "x" time, the other leaves on hour later, or x + 1
the first car travels some distance "d", whatever that is, thus
the second car, picks up the slack, or the difference, they're 380 miles
apart, thus the difference is 380-d
Answer:
268.08
Step-by-step explanation:
first you take your radius and put it in the equation V=4/3πr³ when you insert the 4 you calculate it to get 268.08257
If this helps shuttle A and B will leave at 4:40 together and shuttle B and C will leave at 5:00 together