Look at picture, answer quick please

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

Issof claims that the scale factor is 1/2. which statement about his claim is correct

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.