Choose the inequality that could be used to solve the following problem. Three times a number is at most negative six.

A. 3x ≥ -6
B. 3x < -6
C. 3x > -6
D. 3x ≤ -6

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.