Help! math, ill give u 20 points

What is the value of r of the geometric series?

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

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9