79 is 4 below 83 so her next grade needs to be 4 above in order to get an average of 83. The answer is 87.
Number of friends - x
50-3x=2
-3x=-48
3x=48
x=16
Jack has 16 friends.
Half of pi/3 means 1/2 times pi/3=pi/6
Answer:
Honey I don't see nothing:)
