8(5) - 4y = 39
40 - 4y = 39
-4y = -1, y = 1/4
Solution: y = 1/4
Vertical angles is the same angle, but we don't know "x". If you look in a way. We can do 180=(3x+80).
100=3x
100/3 = x
Now we have the answer for x we plug it in to get the answer.
3(100/3) + 80 =<D
<D = <C
I think a but not sure but i hope i helped :D
Answer: The first option, the one in orange.
Step-by-step explanation:
This is the associative property.
Hope this helps, good luck on the test! :)
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