The school store sold a total of 55 shirts for $620. The shirts sold were either blue or gray. If the
blue shirts sold for $12 each and the gray shirts sold for $10 eac, how many color of each shirt
were sold?

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.