Which of the following is equal to the rational expression when x does not equal -2 or -6?
3(x+2)/(x+6)(x+2)
A{ 1/x+6
B{ 3/x+6
C{ 1/x+2
D{ 3/x+2

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.