Select from the drop-down menu to correctly identify the property shown. −1.4+(−2.6+3.8)=(−1.4+(−2.6))+3.8
associative property

commutative property

opposite of a sum property

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