Answer:
The speed of the airplane is approximately 770 km/h (214 m/s).
Explanation:
Speed = 
Distance = 3080 km
Time = 4 hours
speed = 
= 770
speed = 770 km/h
The speed of the airplane is 770 km/h.
OR
Distance = 3080 km
But,
1 000 m = 1 km
3080 km = 3080000 m
distance = 3080000 m
Time = 4 hours
60 seconds = 1 minute
60 minutes = 1 hour
Thus, 4 hours = 60 x 60 x 4
= 14400 seconds
Therefore,
speed = 
= 213.8889
speed ≅ 214 m/s
The speed of the airplane is approximately 214 m/s.
The answer is D. "urged immedite emancipation of slaves in the unted states.
A because NYC is there with over 8 million people alone
Reconstruction Efforts
Reconstruction efforts after the Civil war have been recognized as a political success however, there are a lot of things that could have been done differently.
Most important for the African-American community. While slavery was completely abolished throughout the country, most former slaves could not find decent living, especially along the bible belt.
Due to rampant racism still in place, African-American community was marginalized in ghettos, taking up small jobs if available.
My main focus would have been to ensure that all these freed people had the same basic rights and opportunities by law.