Can someone please help me with this question

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.

What’s a definition for a polygon inscribed in a sphere ?

Give another definition of variability and explain how it can be calculated.