Well if you take the two numbers and divide them, 9/12 you get 3/4 i would probably say B. 3:4
Since supplementary angles are angles that equal to 180, you first need to subtract 40 from 180 to find out what the equation equals. This is the layout of the equation. 140=4x+20. Next you subtract 20 from each side, 120=4x then you divide by 4 four, x=30.
C is the answer you are looking for.
It is D because you would do x+6 and would get y so it represents direct proportion
Answer:
1. isosceles because two of the sides are equal
2. right because there is a right angle
Step-by-step explanation:
