Lol i forgot how to do this. Sorrryyy.
I think it's D because you times everything from the left column to the right column
Answer:
11
Step-by-step explanation:
I think if I am wrong I am sorry
Answer:
or 
Step-by-step explanation:
we have

step 1
Group terms that contain the same variable

step 2
Combine like terms

step 3
Eliminate parenthesis

step 4
Factor the number 

Point B is has a square so it’s a 90° angle.