Super easy math problem!6 ! problem: consider the system of equations 5x + y = 31, -3x + 4y = -37 solve the first equation for y in terms of x. enter your answer in the form "y = . ."

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.