Answer:
30 meters per second
Step-by-step explanation:

The formula for the circumference of a circle is C = 2pi*r, where r is the radius. Here, 7850 units = C = 2pi*r.
Dividing 7850 units by 2pi, we get
7850 units
r = ----------------- = 1249 units (to the nearest unit)
2pi
Answer:
C.?
Step-by-step explanation:
wheres the pic??
8n-(2n-3)=12
8n-2n+3=12
6n=12-3
6n=9
n=9/6=3/2