Answer:
A) 12
Step-by-step explanation:
Since triangles YRZ and QRS are similar by AA, the ratio of their sides should be constant. Since RY=QY, let's call that side length y.

Multiply both sides by 2y:

Hope this helps!
Answer:
the answer is 5=34−x and x=34−5
Step-by-step explanation:
i just got finished taking the test in 7th grade k12
Do 33x7=231 and that is how u solve this easy problem
Answer:
(x,y) (1,-1)
Step-by-step explanation:
y=3-4x
-x+2y=-3
x+2(3-4x)=-3
x=1
y=3-4*1
y=-1
Answer:
I do not understand.
Step-by-step explanation:
Please add a picture of explain what it is you want help with.
At this moment I do not understand the question, I am sorry.