Two added to product of five times x is less than y minus four, and the
product of x and 9 is less than y. Solve for all values of x and y.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

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.