Hello!
Since the shape has 6 points it is a hexagon
The sum of the angles in a hexagon add to 720
You add all the angles you know
102 + 133 + 117 + 170 + 90 = 612
Subtract this from 720 to find b
720 - 612 = 108
The answer is B) 108°
Hope this helps!
Equation of a line in slope-intercept form:

m is the slope
b is the y-intercept
As you have the slope (m= -4) and a point (6,1) you use it in the equation above to find the y-intercept, as follow:
(6,1) x=6 y=1
m= -4

Solve b:

Then, the equation of the given line in slope-intercept form is:
Answer:
The answer is in the above image
Answer:
The sum of two rational numbers is a (n) rational.