If the area of the circle centered at O is 36π and its diameter is x, then what is the circumference of a circle whose radius is
2 x?53.
(A) 12 π
(B) 24 π
(C) 36 π
(D) 48 π
(E) 576 π- In the parallelogram above, what is the value of a?
(F) 75
(G) 85
(H) 100
(J) 105
(K) 115