Answer:
To find the sum of interior angles in a polygon, we can use the formula:
where n is the number of sides.
Since this is pentagon (5 sides), then 
The missing angle would then be

Since angles on a straight line add up to 180, then


Answer:
what slope and graph? sorry!
Answer:
c is the correct answer..........
Z = 17.
2(4z -8) = 120
8z -16 = 120
z -2 = 15
z = 17
Because the angels are equivalent, you can set the expressions equal to each other and solve. You will find that x = 54.
Work shown in image - let me know if I made any errors or if you have any additional questions.