Mandy was flying in a helicopter at an altitude of 500 feet. The helicopter descended 450 feet. What is Mandy's altitude now

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

Find the value of x. round the length to the nearest tenth

Yo need asap pls ! markin da brainiest too !