The number of visits to public libraries increased from 1.3 billion in 1995 to 1.5 billion in 2000. Find the average rate of change in the number of public library visits from 1995 to 2000

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220