Answer:
Center: (4,-13)
Radius: 17
Step-by-step explanation:
I guess you do not need an explanation, so I gave you only an answer.
From my understanding -4/5 is bigger.
They are same side interior angles and same side interior angles are supplementary (add up to 180 degrees).
So, 6x+12+4x+18=180
Combine like terms:
10x+30=180
Subtract 30 from both sides:
10x=150
Divide both sides by 10:
x=15.
Therefore, the angles are same-side interior angles and x=15.