Use the data set to answer the question. {22, 26, 28, 35, 45, 63, 91}
What is the mean of the data set?
Enter your answer as a number rounded to the nearest tenth,

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.