C is the correct answer
good luck
If its a triangle u have to add the given angles and subtract by 180 to get x
(-1,-9) because if we substituted 1 into x y would be 9 and if we substituted 1/2 into x y would be 3 but if we substituted -1 into x y would be 1/9 so therefore that value is incorrect
<span>apply the Distributive Property and combine like terms in the expression
</span><span>
x + 3y − y + 3x + 2(2 + 4 + y)
= 4x + 2y+ 12 + 2y
= 4x + 4y + 12
answer
</span>B: 4x+4y+12
