Describe the transformation of f(x) if g(x)= -2/3f(x+4)-5

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Astrid spent $36 on new shoes. this was $12 less than twice what she spent on a new skirt. part a: which equation would solve for how much she spent on the skirt? part b: solve the equation in the workspace provided below. how much did astrid spend on her skirt?

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?