Choose the correct simplification of the expression (−2x + 8y)(9x − 3y).

−18x2 + 78xy − 24y2
18x2 + 78xy − 24y2
−18x2 − 78xy + 24y2
−18x2 + 72xy − 24y2

Which of the following is the rational exponent expression of 6 root f

Nikolas calculated the volume of the prism. his work is shown below.

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.