Assume that the moon is a sphere. What is the volume of the moon if its diameter is 3,476 km? Express your answer in scientific notation to two significant digits.
A) 2.2 x 10^10 km^3
B) 2.2 x 10^9 km^3
C) 3.2 x 10^11 km^3
D) 1.8 x 10^10 km^3
Volumesphere = (4/3) pi (diameter / 2)^3 = (4/3) pi (3476 / 2)^3 =
2.2 x 1010 km^3
+252 
