Answer part B (as part A is 75)
![Answer part B as part A is 75 class=](https://us-static.z-dn.net/files/ddb/190dcf9553d71bbc55ee9ecbec6deb15.png)
Answer:
because there is 180 degrees in a line. if 105 degrees is taken away from the line. then (180 - 105) is 75 degrees.