I need help! Will give high amount of points, 5 stars and brainiest if you help me get it right. Must explain how you got your answer I have to show my work (thanks).

9. Supplementary (angles adds to 180)

10. complementary (angles add to 90)

11.

 6x+4=10x

   /6x

   4=4x

    x=1

12.

 8+7

   90/15

   x=6

9. Supplementary Angle

10. Complementary Angle

11. Supplementary Angle

12. Complementary Angle

Step-by-step explanation:

I don't know how to solve the xs, but Supplementary angles means two angles that add to equal 180 degrees. And Complementary angles means two angles that add to equal 90 degrees.

answer: give more info

step-by-step explanation: