PLEASE HELP ITS A TIMED TEST PLEASSEE

What is the solution to the equation 9^(x+1) =27

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

Reflect the point (7,0) across the y-axis