Can you help me please!

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.

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

When is g(x) = 0 for the function g(x) = 5.23x + 4?