Hope these notes help ! https://mathbitsnotebook.com/Algebra1/Quadratics/QDVertexForm.html
Corresponding angles are angles that are located in the same area at each intersection.
Angles 7 and 3 are vertical angles.
The answer is C, angles 3 and 11 are corresponding angles.
The correct equation to use is A. n+d=27 0.05n+0.10d=1.95
Ben mixed up the first two #s. he needs to make the 6 a 5 and 5 a 6
