Find the two-digit number satisfying the following two conditions. 1) four times the units digit is six less than twice the tens digit. 2) the number is nine less than three times the number obtained by reversing the digits. will be awarded 50 points!

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.