Step-by-step explanation:
you did not show us the graph, and your problem description is a bit gibberish - I am sure there are some important parts missing.
therefore it is impossible to answer this.
Answer:

Multiply both sides by 1150


Now Divide both sides by 132.25

<u>OAmalOHopeO</u>
Answer:
x + 49 + 28 = 180
Step-by-step explanation:
The angle adjacent to x on the left is vertically opposite 49° and is congruent.
The 3 angles then lie on a straight line and sum to 180° , that is
x + 49 + 28 = 180
He messed up step 2 he added instead of multiplying
Answer: It might be C
Step-by-step explanation:
What vertices mean if you don't know fully:
The edges are the lines that make up the boundary of the shape. Each point where two straight edges intersect is a vertex. A triangle has three edges -- its three sides. It also has three vertices, which are each corner where two edges meet.