Can anyone help me with this? (Geometry)

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

2,10,-50 next two numbers geometric sequence

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?