Which expression is equivalent to 21^3 sqrt 15 -9^3sqrt15?

Complete the square to determine the minimum or maximum value of the function defined by the expression. x2 − 12x − 2 a) maximum value at 38 b) minimum value at 38 c) maximum value at −38 d) minimum value at −38

If my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?

Which expression and diagram represent “renee biked four times as far this month as last month”?