Im pretty sure the answer is Twelve :))
No. If only the variable, "x" doubles, then the variable, "y" would not double, UNLESS it says that if BOTH variables double.
Well when the dog runs the rabbit runs so to find out if the dog reaches the rabbit and how long it will take, we will use multiples.
DOG: 200 400 600
RABBIT:150 300 450 600
Yes the dog will reach the rabbit and it will take 3 minutes long.
