Which of the following pairs represent the same rational number? a) -2/3 and 4/9 b) -1/-2 and -3/-2
c) 5/4 and 25/20 d) 6/12 and -1/2
plz give me answer my exam is going on

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a