30 pts plzz answer 3 questions

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

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

20 points + brainliest answer + my mom’s chocolate chip cookie ! subtract.