Help please it’s timed

Asap 25 pts brainliest to right best/answer

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.

Someone me! if you’re smart you can solve this!