Professor Shepherd weighed two pieces of metal for an experiment. The piece of iron weighed 7/12 of a pound and the piece of aluminum weighed 1/2 of a pound. How much more did the piece of iron weigh than the piece of aluminum?

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?