Triangles add to 180° and there is already 100° shown inside of the triangle (30° plus 70° = 100°). 180° -100° = 80°, which is x. X and y are vertical angles, so y is also 80°. The answer is B.
Yes a line can go through more than one according to the points on the graph
Answer:
Zero property of addition.
Step-by-step explanation:
A number plus zero will be equal to said number.
Answer:
x= fraction {15-3y}over{5}
Step-by-step explanation:
Answer:
d
Step-by-step explanation: