She ran the last 100 meters in 2:15 -1:25 = 0:50, so her average speed was
... (100 m)/(50 s) = 2.0 m/s
First one is y=4x and the second one is y=2x
She had none left. if she only had a meter and then used a meter there would be none left.
12 is the answer your looking for
