if 1.5 million people are in a 2 blocks by 2 blocks area of times square on new years eve, approximately what is the density per square block

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?