Me with number 9, also what method you used to get the equation

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

Write the equations in logarithmic form 10^3=1,000

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.