Question 36029
hank you very much for your help!
The volume of a sphere is directly proportional to the cube of its diameter 
THAT IS V=K*D^3..WHERE K IS A CONSTANT
and is 288(pie)cm cubed when the diameter is 12 cm.
HENCE 
288*PI=K*12^3
K=288*PI/(12*12*12)=PI/6
 Find the constant of proportionality in terms of (pie).
K=PI/6

 Then write the formula for the volume of a sphere in terms of its diameter.
V=PI*D^3/6
I know the answer is pie/6 and V=pie/6 d cubed. Thanks again!
V I