(-2) + 4 = 4 + (-2)

what property is illustrated above?

a.
inverse property of addition
b.
identity property of addition
c.
associative property of addition
d.
commutative property of addition

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.