3
(d) 16 4 × 82 : 2-1​

What is the quadric regression equation that fits these data

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.

With number 11 ( show how you got the answer)