Answer:
Step-by-step explanation:
Combining like-terms gives us 
Hope this helped!
Answer:
z = 48 :)
Step-by-step explanation:
z ÷ 4 = 12
So, all you need to do is multiply 12 by four, to get z- 48
hope this helped!
Answer:
4 and 10/2 so actually 9
Step-by-step explanation:
Answer:
about 80º give or take
Step-by-step explanation:
it's not quite 90 degrees, and its not 70 degrees or below.
2 lines parallel, and 2 triangles have a common angle
So the smaller Δ is similar to the bigger Δ (AA Similarity)
9:(4x-2)+9=12:(3x+2)+12
9:4x+7=12:3x+14
9(3x+14)=12(4x+7)
27x+126=48x+84
21x=42
x=2
So the answer is x=2
