9 divided by 272 plz help

In the rectangle below ac=30 units what is de

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

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?