Answer: 720 ways
Step-by-step explanation:
Given
A train has 1 main engine and remaining 6 train cars
If the engine is always in the front the remaining train cars can be arranged is

Answer:
-2
Step-by-step explanation:
maybe?
Answer:
Route B
Step-by-step explanation:
Route B has the fastest travel speed compared to route A and C.
There can be 6 teams because
27/4= 6.75
yet there will be 3 students left, so they can be a team ;)
C, because the graph titles.