Answer:
A. Angle 1 and Angle 7
Step-by-step explanation:
Those two are the only angles that when added up, the sum is 180.
Angle 7 and Angle 2 are also congruent, so if Angle two forms a straight line with Angle 1, Angle 7 should be able to do that too.
yes
a
The answer is 12.
12 is the coefficient because it is the number multiplied by the variable p in the equation.
I hope this helps u! :D
