Simplify the expression 3x -2y+6-6x+5y-8

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.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?