Help with number 4 what is the answer

Mr. mann's science students were experimenting with speed. they set up a 1 meter (100 cm) track. the students used balls instead of cars. the balls were different sizes and made of different materials. four at a time, students rolled balls around the track to see which had the fastest and slowest speeds. some of their data are shown in the table. which ball will take the longest to complete one lap around the track?

Amember of congress acting as a trustee casts a vote for a bill based on his or her

Which of the following statements best describes the concept behind labor unions?