- ++ -3 -2 -1 0 1 2 2) Which addition equation matches the number line? 1 +(-2) = 3 2 1 3 2 + 3 ( 2 3 2 1 3 2 +(-2) = 2 1 + 3 1 3 2 3 3 ​

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.