What is the value of Y?

Answer:
Finding the y value is easy if you know the slope of the line and the x coordinate. Review the equation for the slope of a line. The equation for finding the slope is: m = [y1 - y2] / [x1 - x2]. If you know x, you can solve for y to find the y value for the slope of the line.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer B
cause a full triangle degrees is 180 degrees and u just have to remove:
180-40-30= 110 degrees