721*8= 5768.................
first polygon
ext. angle=180°-120°
=60°

n=360°/60°
n=6
second polygon
n=2(6)=12
ext. ang= 360°/n = 360°/12° = 30°
int. ang = 180°-30°= 150°
answer is C
THE ANSWER IS D
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Answer:

Step-by-step explanation:
1. Find the slope of the line by plotting the points or by using the equation to find the slope.
2. Plot the line using the slope and find the y-intercept, which is 4.
3. Put your information together to get the equation
.