Convert 604,800 seconds to weeks using dimensional analysis

Anyone know? will mark brainliest if correct!

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?