Question

Y’all I need help, MATH, please correct answer and how you did it:)

Answer 1

21 I think I'm not sure tho

Answer 2

1.uhhh I don't wanna explain all of it but basically a straight line is 180 degrees and the parallel lines are important because they are the reason that 5 and 1 are equal, etc.

2. Again, parallel lines play a big role. If it helps, 3 5 and 4 are all equal angles because of the parallel lines