Answer:
210 miles in 1 hour
Step-by-step explanation:
steps are in picture
Answer:
n = 12.89
Step-by-step explanation:
Add 9.02 + 3.87
Answer:

Step-by-step explanation:

The central angle corresponding to AOB is half of the 8pi/9 radians mentioned, meaning that the central angle of AOB is 4pi/9.
Converting that to degrees:
4pi/9 180 degrees
-------- * -------------------- = 80 degrees.
1 pi