50 point Please help. Thank you :)

Question 1 What is the value of x?

Question 2 What is the value of x?
A:x=15
B:x=30
C:x=37.5
D:x=52.5

Question 3 What is the measure of angle z in this picture?

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the angles are in linear pairs...

so,

=>(10x-20)+(6x+8)=180°

=>10x-20+6x+8=180

=>16x-12=180

=>16x=192

=>x=192/16=12

43+x=180

x=180-43

x=137°it's not mentioned in the option

value of z°=137°

because,

x°=z°(vertically opposite angles)

therefore,

z°=137°

b

Step-by-step explanation:

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (