Need some help with multiplying algebraic fractions

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

For the equations below which statement is true ?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?