Step-by-step explanation: if you are comparing them then you need 11. I am not sure if this is what you were looking for, the directions were not that clear.
Your distance is 1424 and your rate is 356. As you said, d = r*t. Since you don't have the time you would do 1424 divided by 356. This leaves you with a time of 4 hours. (Don't forget units!)
