Evaluate $f(2)\ in\ f(x)=\frac{2}{x}.$

Evaluate $f\left(x\right)=\frac{x^2-3}{x}$ for $x=5$

Evaluate $f\left(x\right)=\frac{2}{x-3}$ for $x=-3$

Evaluate $f\left(x\right)=\frac{2}{x+3}$ for $x=2$

Evaluate $f\left(x\right)=\frac{x+5}{x-2}$ for $x=2$ .

Evaluate $f(-1)\ in\ f(x)=\frac{x^2+1}{x}.$

Evaluate $f\left(x\right)=\frac{x+2}{2x+5}$ for $x=1$

evaluate $f\left(x\right)=\frac{x^2-3}{x-1}$ for $x=3$

Evaluate $f(0)\ in\ f(x)=\frac{2x+1}{2x-1}.$

Evaluate $f(4)\ in\ f(x)=\frac{x+1}{x-1}.$