A spherical tank has a radius of 6 yards. It is filled with a liquid that costs $7.50 per cubic yard.
What is the total value of the liquid in the tank?
Use 3.14 for π
Volume is 4/3 π r3 = 4/3 x 3.14 x 216 = 904.32 yd3
904.32 yd3 x $7.50 $/yd3 = $6,782.40
.
+687 
