I have a question, How do I do this? example: a triangle ABC, a : 50° b: 60° c: 50°, then what is D? I need explanation for this, not answer. EDIT: THIS IS AN EXAMPLE, NOT A QUESTION
sorry for adding wrong category

Occurs when the immune system attacks the body. lupus cancer sickle cell disease huntingtons disease

If you see someone who is injured at a workplace, the first thing you should do is a. call 9-1-1 or your local emergency number b. begin to administer first aid c. check the scene for danger d. try to discover what is wrong with the person select the best answer from the choices provided a b c d

List things you can lose your license for if you are under 21