if x = 10, what algebraic property does 5x = 5 • 10 represent?
a) multiplicative identity
b) multiplicative inverse
c) multiplication property of equality
d) associative property of multiplication

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.