Which of these expressions demonstrates the identity property? Check all that apply. 25(0) = 25 25(1) = 25 25 + 0 = 25 25 + 1 = 25

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.