Answer: 
Step-by-step explanation:
Given
The total no of beads is 52
there 13-red,13-blue,13-green, and 13-black
favorable outcomes to select a blue bead is 13
Total outcomes are 52
Probability is given by

I gotchu bruh.
Equilateral triangles got 60 per angle
Add 60 to that one next to 100 so you got 160 and the other triangle is iscosles so the equation is
160+60+60+x+x=360
2x=80
X=40
The values are as follows:
z=50
v= 150
x= 100
y=15
w= 50
<h3>What is parallel lines?</h3>
Parallel lines are lines in a plane that are always the same distance apart.
z+130= 180 (Linear pair)
z=50
v+ 30 = 180 (Linear pair)
v= 150
x= 180- 30 - 50 (angle sum property)
x= 100
2y=30 (alternate interior angle)
y=15
w+x+2y=180 (Linear pair)
w+ 100 + 30 = 180
w= 50
Learn more parallel lines here:
brainly.com/question/16701300
#SPJ1