Answer:
Step-by-step explanation:
so pathetic, I don't even get you
Its C. He substituted incorrectly when calculating the constant of variation.
Reason: He said so
c) 25 X π / 2 ≈ 39.3, d) 16 X π / 4 ≈ 12.6, b) 100 X π / 4 X 3 ≈ 235.6
B