Which of the following ordered pairs is represented by a point located on the x-axis?
select one:
a. (6,-6)
b. (3,3)
c. (0,8)
d. (-5,0)

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.