Answer:

Step-by-step explanation:

Answer:
its the 3rd 1
Step-by-step explanation:
Answer:
This says middle school.. What grade are you in? I am in 8th grade and do not know any of that...
I have never seen work near that.........
Answer:
31.5 hours
Step-by-step explanation:
time * speed = distance
speed=400/6=66.67 miles per hour
2100/(400/6)=31.5 hours