Becky makes between 180,000 and 300,000 in commissions each year. Express range as an inequality.

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

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.

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?