[ 1 ] Given
[ 2 ] Exterior Sides Opposite Rays
[ 3 ] Definition of Supplementary angles
[ 4 ] First substitution
[ 5 ] Subtraction Property of Equality
[ 6 ] Second Substitution
[ 7 ] If corrsp. equal, the lines ||
Didn't know if this was a question but if yes it is
I think #1 is -1/2 but im not sure i dont know about the other answers
Answer:

Step-by-step explanation:


