Which of the following is false? -A cone has a circular base.
-A pyramid can have a triangular base.
-The volume of a hemisphere is V = {tr}
-The volume of a sphere is V = g ar?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.