42 deliveries in 3 hours = deliveries per hour

Use set builder notation to represent the following set: { -3, -2, -1, 0}

What is the value of x in the diagram below?

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?