Answer: Hope this helped(tried my best thinking what the question was asking)
x=0
y=-3
Step-by-step explanation:
(Im going to add and subtract)
Add:
14x-12y=36
14x+9y=-27
28x-3y=9
Subtract:
-14x+12y=-36
14x+9y=-27
21y=-63
y=-3 (substitute in first equation)
7x+18=18
7x=0
x=0
SO
y=-3 and x=0
Each angle size corresponds to the side.
Which means that, D is the smallest because it's corresponding side is the smallest of the 3.
It would be D, E, F, because smallest to largest is 28, 32, and 34.
Hope that helps.
Step-by-step explanation:

Im doin the same stuff and can’t figure it out
120
OA = OB
angle OAN = 90 degrees, so OAB and OBA is both 30 degrees.