6x+3x-(x-10)=20x help... step by step.

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

What is the value of x in the following equation. -x ^3/2 = -27

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?