$16\div\left(-2\right)$  = ???

 $\frac{-14}{-2}\ =\ ???$  

 $\frac{-18}{-3}\ =\ ???$  

 $\left(-30\right)\ \div\ \left(-5\right)\ =\ ???$  

 $\left(-144\right)\ \div\ \left(-8\right)\ =\ ???$  

 $54\ +\ \left(-36\right)\ \div\ 9\ =\ ???$