If I drew a line along Wall Street , how many people currently and could feasibly live between there and the southern tip of Manhattan ?
If you have a square box filled with two layers of chocolate squares and you eat all 20 pieces in the upper layer along the wall , how many are left in the box ? Is there a graphical way to set this up or a math equation ? Not only what is the answer and how do you get it , but how do you approach problems like this from a mathematician 's mindset ?