Use your graphing calculator to determine if the equation appears to be an identity or not by graphing the left expression and right expression together. if so, verify the identity. if not, find a counterexample. sec x + cos x = tan x sin x

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.