Answer:
∠ABC= 35°
Step-by-step explanation:
im not sure if u need explanation but comment if u do
Answer:
Step-by-step explanation:
Since the two triangles are similar, you can use proportions to solve for the value of 

Now, just multiply 4 and 12.

Then divide that by 3.

Therefore,
.
Answer:
x = -6
-18+4y=0 => 4y=18 =>y=18/4=9/2
Y=5
3x+20=0 => x=3x= -20=> x= -20/3
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
18
2 * 9 = 18
9 + 9 = 18