7. after a blizzard the amount of snow on the ground melted by 3 inches one day and then another
8 inches the next day. write an expression that represents the total change in the amount of snow
on the ground over the two days.

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.