Hey so theirs this thing it gets you a person and all you have to do is take a pic of your problem and they will help you thank me later :)
I believe the answer is 0.5
Given:
Planes X and Y are perpendicular to each other
Points A, E, F, and G are points only in plane X
Points R and S are points in both planes X and Y
Lines EA and FG are parallel
The lines which could be perpendicular to RS are EA and FG.
Answer:
Associative and Commutative properties
Step-by-step explanation: