6 8ths -2 8ths thanks please explain to​

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

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

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?