That would be a total of 9 half meters
Use the equation C = 2<span>πr where r is the radius to find the circumference of the track. That is the perimeter around which she has run:
</span>C = 2<span>πr
C = 2</span><span>π(60 meters)
C = 120</span>π meters <span>≈ 377 meters</span>
The value of four are in the hundreds place
8x^2 - 50 =
2(4x^2 - 25) =
2(2x + 5)(2x - 5) <==