Answer:
15.7
Step-by-step explanation:
Lets take a = 50.
Area of Sector =

Your answer would be B.
HOPE THIS HELPS YOU! ^_^
5 m/sec or 300m / min
using speed = 
change 5 min 20 sec to seconds = (5 × 60) + 20 = 320 sec
speed =
= 5m / second or
speed = 60 × 5 = 300m / minute
Answer:
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