There is 180 degrees on a straight line so you can work out the unnamed angle in the triangle by doing 180-115 which is 65
There are also 180 degrees in a triangle so to work out y you do 180 - (65+85) = 30
So y = 30 degrees
There is no table I’ll edit my answer once you add the table
Add $9.40 two times what ever you get multiply that 15 and there’s your answer
