Simplify the equation
((x-2/x+2)^-1 - (x-2)/(x+2))•x^-1 - ((x^2-4)/(12-x^2 ))^-1

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

27 +27 or 27times 2=54

the diffrence is 0

b. b < 1 might be the correct answer

then