School supplies r us is having a back-to-
school sale and advertises in the local
paper that pencils are "0.88 cents" a pack.

*write this as an fractional rate

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.