Two hikers are 66 miles apart and walking towards each other. They meet in 10 hours. Find the rate of each hiker if one walks 2.2 mph faster than the other.

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