One bag holds 12 bolts. several bags filled with bolts are packed into a box and shipped to the factory. the box contains a total of 2,760 bolts. how many bags of bolts are in the box

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