Answer:
b
Step-by-step explanation:
X+y=27
x=2y
2y+y=27
y=9
x=27-y
x=27-9=18
Answer:
A, yes.
Step-by-step explanation:
63:60, 21:20:
The difference between 60 and 20 is *3. If you do that to 21, you get 63. So a , yes.
The correct triangle is right
Answer:
17
Step-by-step explanation: