3 You and your uncle are pouring cement to help your family build a brand
new patio in the backyard. Your uncle is able to work faster than you. He uses 3
bags for every 2 bags you use. Are the relationships proportional? How do you
know?

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.