Jerry Katy ask how far they live from school. The graph shows the data each person has collected. Please help I will give brainielist

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.

Ihonestly have no clue if it's each or none.

Find two numbers if their sum is 91 and the ratio is 6: 7?