I think D because don't proportional lines go straight or sum
The best answer I believe is t - 2
f(0)=64, f(1)=66, f(2)=72, f(3)=82, f(4)=96,...=2,6,10,14,...=2{1,3,5,7,...}
This can be written 2{2x+1}, so the intervals on which f(x) increases are 4x+2.
If the diameter is 16, then the radius is 8.
A=(pi) r^2
8*8=64
64*3.14159265359=201.06
201.06 is your answer.
-TheOneandOnly003
The answer to (r -3s2t)4 is 4r- 24st
