1. 400/20= 20 meters per second
2. 50/10= 5 meters per second
3. 90/45= 5 meters per second
4. 43.888888 (8 repeats) meters per second
5. 16/0.25= 64 km per hour
6. 5/1= 5 seconds to travel 5 meters
7. 200/1.5= 133.33 seconds
8. 139/13.0= 10.7 seconds
These are the answers I got :)
