Heidi was riding her bike on a loop that is 7/8 mile long. She rode for 1/2 mile and then stopped to rest. She rode another 1/4 mile and then had a flat tire. How far does Heidi have to walk her bike to complete the loop?

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