The formula f=1.8c+32 compares temperatures in degrees celsius c, to temperatures in degrees fahrenheit f. find four ordered pairs (c, f) that are solutions of the equation.

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.