I need help please help me :(

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

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.