Removing Discontinuities Practice Test

For a cost function $h(x)=\frac{x^2-4x}{x}$ for $x\ne0$ and $h(0)=7$, what value of $h(0)$ removes the discontinuity?

A lab defines $f(x)=\frac{(x-2)(x+2)}{x-2}$ for $x\ne2$ and $f(2)=-1$; what value should $f(2)$ be to remove the discontinuity?