Solve for x. 39=3x simplify has much has you can

Which number produces a rationale number when multiplied by 1/5

For what value of (y) is 3^3/3^y =1/9

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.