Which of the following angles would NOT be congruent to the measure of  $\angle7$ ?

Which of the following is NOT an example of supplementary angles?

If the  $m\angle7\ =\ 115\degree,$  find the measure of  $\angle2.$  

If the  $m\angle5\ =\ 63\degree,$  find the measure of  $\angle3.$  

If the  $m\angle1\ =\ 57\degree,$  find the measure of  $\angle6.$  

Find the value of x if the  $m\angle1\ =\ 11x\ -\ 9\degree$ and the  $m\angle5\ =\ 7x\ +9\degree$ .