Please Help Fast Will give 80 points and brainliest to first correct answer
What is the value of y?
{picture below}

The Correct Answer is A. 40*
Explanation:
A. y+10* :(40)+10*=50*
B. 2y* : 2(40)*=80*
C. 50* : 50*
A and C have to be the same angle.
B is 10 degrees under 90 degrees or a right angle