How many blocks would you have to walk back if you walked 6 blocks East 10 blocks North and 9 blocks West?

To find out how many blocks you would need to walk back, first calculate your net displacement in the east-west direction. Starting from your original position, moving 6 blocks east and then 9 blocks west results in a net displacement of 3 blocks west. Since you are 10 blocks north, you would need to walk back 3 blocks east to return to your starting point. Therefore, you need to walk back 3 blocks east.