PLEASE HELP ME WITH MY MATH IT WILL SAVE 1 BOB

You have 3 boxes, one "strawberries"; one "mentos" and one "mixed".but you know that all the labels are in incorrect order .how do you know witch is witch?

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.