Evaluate the following expressions: Show all your work. a. 4 x (- ½) x 9 x (-1) x 20 x (- 1/5) b. 4 ÷ (-2) x 3 x (-3) ÷ (-9)

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.