Good morning people i hope you are having a great day um free points

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.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Acircle has a circumference of 7.850 units. what is its radius?