PLEASE HELP ME 40 POINTS

Answer:
y=27
Step-by-step explanation:
Fact 1: The sum of two adjacent angles formed by the intersection of two lines is 180.
So, x+146=180
=>x=34
Fact 2: The sum of the inscribed angles in a triangle is 180.
So, (5y+3)+(4y+8)+34=180
=>5y=180-45
=>5y=135
=>y=27