Explain and if you don't know answer in the comment section but however if you do know answer in the box below

Answer 4: Angle 4,5 and 1

Answer 5: 3,4 and 5

Answer 6: The value of x is 10 because since angle 3 is 90 degrees angle 1 is 9x 9 times 10 equals 90 degrees which is the same as angle 3 which is 90 degrees, so the answer is 10.

4.) adjacent angles are 2 angles that share a common side AND vertex           <=angle ANSWER- <3 & <2, < 5& <1 
5.) Vertical angles are angles that are made by 2 intersecting lines<=angle ANSWER- <1 &<3, 
6.)90=9x divide both sides by 9 and x=10