The radius is 4.99, im sure
Answer:
The velocity is 8.93 meters/second.
Step-by-step explanation:
It is given that Elena runs for 28 seconds and finishes at 250 meters.
Here the displacement is 250 meters and the time is 28 seconds.
We know that 
Substitute displacement = 250 and time = 28 in above formula.

meters/second
Hence, the velocity is 8.93 meters/second.
Answer:
8
Step-by-step explanation:
Answer:
umm im not sure if its correct but do 2 ( the colors ) times how many times it is spun. so there are 6 .
Step-by-step explanation:
x^2 + 4x + 3 + 1 = (x + 2)^2
So 1 need to be added.