Respuesta :

25leeelisa

Answer:

you are right

Step-by-step explanation:

C=d*pi

a. for d/C, it would be d/C=1/pi

c. for pi/C, it would be pi/C=1/d

d. for pi/d, it would be I don't wanna do, but it doesn't matter cause it's wrong

therefore, C/d=pi

is correct