Need help ASAP
Which two ratios form a proportion?

Do u just plot the numbers on the graph like (1,

Which compound inequality could be represented by the graph?

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.