What is the domain of y = x + 1?

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m