Santa's team of reindeer traveled 1,200 miles on 40 packages of magic reindeer dust. how many miles did they travel on just one package (what is the unit rate? )

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