Respuesta :

thebecks

Answer:

b = 130°

Step-by-step explanation:

angles b and 50° are supplementary angles so their sum is 180°.

b = 180° - 50° = 130°

hwhorley12

Answer:

Step-by-step explanation:

right angel u have to  angel it with a pen on a paper but i know its b/50 cuz i did it already.