Hey this is quadratics
Help pls

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

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x

Express -5 2/5 as an improper fraction.