Answer:
Khalid = 140 mph
Jesse = 150 mph
Jesse has the faster train
Step-by-step explanation:
Khalid is travelling 140 mph because 280/2 is 140
Jesse is travelling at 150 mph because just like the question stated, y=150x where "x" is the total hours they traveled and 150 is the distance she traveled.
Jesse is faster because 150>140
