https://snag.gy/Q7sw6T.jpg
Let g(x) = y
These are easy to solve....the product of x and y in the inverse variation is constant
So...
y * x = (0.2) (0.1) = .02
So....when x = 1.6
y * 1.6 = .02 divide both sides by 1.6
y = 0.0125 = g(x)