Try These C

A & B
I’m honestly very confused

for b

Step-by-step explanation:

r and s are congruent because they're both supp to the same angle

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

noncoplanar points are points that do not lie on the same line.