Answer:
the answer would be D.
Step-by-step explanation:
while the x goes up by one, the y goes down by three
X=4, y=28. 7x=2x+20, so subtract 2x from both sides and you’ll get 5x=20. Divide both sides by 5 and you’ll get x=4. Substitute this into the other equations and they will both equal 28.
267.3
1 2 3 4 STAYS THE SAME
5 6 7 8 9 ROUNDS UP
They are most likely 90 degrees, due to the sharing of a common side and a common vertex. They really could be anything though. If given more details, I will give a better answer. I still would like Brainliest, however.
