I need help with both of these questions please!

1st question: Given the figure below, find the values of x and z.

2nd question: Find the value of x.

The answer to your question is below

Step-by-step explanation:

1)

Process

1.- Find z

                 z = 107°              because they are vertical angles

2.- Find x

            5x - 7 + 107 = 180        Because they are supplementary angles

            5x  = 180 + 7 - 107  

              5x = 80

              x = 80/5

             x = 16

2)

The sum of the internal angles in a triangle equals 180

             65 + 50 + x = 180

             x = 180 - 65 - 50

             x = 65°          

idk

step-by-step explanation:

do it yourself, cause that made me do it myself today, in english!

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.