Evaluate $f(4)\ in\ f(x)=\sqrt{x}.$

Evaluate the value of function  $f\left(x\right)=\sqrt{x^2+x+1}$ at $x=3$

Evaluate the value of function $f\left(x\right)=\sqrt{2x^2-9x+7}$  at $x=5$

Evaluate $f(-27)\inf(x)=\sqrt[3]{x}$

Evaluate $f(16)\ in\ f(x)=-\sqrt{x}.$

Evaluate $f(125)\ in\ f(x)=\sqrt[3]{x}.$

Evaluate the value of function $f\left(x\right)=\sqrt{x^3-3x+7}$  at $x=6$ .

Evaluate the value of function $f\left(x\right)=\sqrt{3x+7}$  at  $x=3$

Evaluate the value of function $f\left(x\right)=\sqrt{6x^2+5x+5}$ at $x=4$ .

Evaluate $f\left(8\right)$ in $f\left(x\right)\ =\ 2x\ +\ x$.